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- Approximate theory-aided robust efficient factorial fractions under baseline parametrization. Annals of the Institute of Statistical Mathematics 2016. 68:787-803 .
- Minimax designs for the difference between two estimated responses in a trigonometric regression model. Statistics & Probability Letters 2013. 83:909-915 .
- Rotatability is a sufficient condition for A- and D-rotatability. Communications in Statistics: Simulation and Computation 2010. 39:1174-1182 .
- Necessary and sufficient conditions for $D$-rotatability of second-order designs. The Aligarh Journal of Statistics 2008. 28:47-53 .
- Minimax Design for the Difference Between Estimated Responses for the Quadratic Model Over Hypercubic Regions. Communications in Statistics: Theory and Methods 2007. 36:1225-1231 .
- Rotatable generalized central composite designs: A-minimax efficiencies for estimating slopes. Pakistan Journal of Statistics 2004. 20:397-407 .
- On second-order a-, d- and E-minimax designs for estimating slopes in extrapolation and restricted interpolation regions. Communications in Statistics: Simulation and Computation 2004. 33:773-785 .
- The performance of second-order D-minimax optimal designs for estimating slopes under model variation. Journal of Statistical Theory and Applications 2003. 2:223-234 .
- The performance of second-order {$D$}-minimax optimal designs for estimating slopes under model variation. Journal of Statistical Theory and Applications 2003. 2:223-234 .
- Fitted minimax designs for estimating the slope of a third-order polynomial model in a hypercubic region. Pakistan Journal of Statistics 2003. 19:53-72 .
- On D-minimax efficiency of second-order rotatable designs for estimating the slopes. Journal of Statistical Studies 2001. 21:1-12 .
- On $E$-optimal designs for estimating slopes. Journal of Applied Statistical Science 2001. 10:357-364 .
- On $D$- and $E$- minimax optimal designs for estimating the axial slopes of a second-order response surface over hypercubic regions. Communications in Statistics: Theory and Methods 2000. 29:1827-1849 .
- On $D$-optimal designs for estimating slope. Sankhyā, Series B 1999. 61:488-495 .
- Minimax designs for estimating the slope of a third-order response surface in a hypercubic region. Communications in Statistics: Simulation and Computation 1998. 27:345-356 .
- On optimal designs to estimate the slope of a second-order response surface over cubic regions. Parisankhyan Samikkha 1998. 5:11-19 .
- Minimax second-order designs over hypercubes for the difference between estimated response at two points on a straight line through the origin. Calcutta Statistical Association Bulletin 1998. 48:101-108 .
- Minimax second-order designs over hypercubes for the difference between estimated responses at a point and at the centre. Statistics & Probability Letters 1997. 33:193-199 .
- Inefficiency of rotatable designs in hypercubes. Pakistan Journal of Statistics 1997. 13:101-106 .
- A note on third-order $D$-optimal symmetric product designs in hypercubic regions. Journal of Applied Statistical Science 1996. 4:9-16 .
- On optimal designs with restricted circular string property. Computational Statistics & Data Analysis 1995. 19:75-83 .
- Second order designs in $k$-cubes minimizing average variance of the difference between estimated responses at a point and the centre. Parisankhyan Samikkha 1995. 2:53-65 .
- On efficiency of some $D$-optimal designs in subset estimation. Journal of the Indian Society of Agricultural Statistics 1995. 47:151-163 .
- Optimal design of experiments with nonuniform interest in the parameters. Parisankhyan Samikkha 1995. 2:47-54 .
- A method for construction of third order rotatable designs. The Aligarh Journal of Statistics 1995. 15-16:19-25 .
- $A$-optimal third-order symmetric product designs for hypercubic regions. The Aligarh Journal of Statistics 1994. 14:7-11 .
- On efficiency of some $A$-optimal designs in subset estimation. Pakistan Journal of Statistics, Series A 1993. 9:35-46 .
- On some $A$-optimal second-order designs over cubic regions. Communications in Statistics: Simulation and Computation 1993. 22:99-115 .
- Estimation of intraclass correlation when family sizes are unequal. Computational Statistics & Data Analysis 1993. 15:273-284 .
- Further results on optimal designs with circular string property. Journal of Statistical Planning and Inference 1992. 33:403-411 .
- On some $D$-optimal second-order designs for hypercubic regions (STMA V36 2284). The Aligarh Journal of Statistics 1992. 12:25-30 .
- A note on the bias minimizing property of the uniform design measure. Pakistan Journal of Statistics, Series A 1992. 8:19-24 .
- Minimax designs for estimating the slope of a second-order response surface in a cubic region. Journal of Applied Statistics 1992. 19:501-507 .
- Some $A_s$-optimal designs and their $A$-efficiencies. Communications in Statistics: Simulation and Computation 1991. 20:309-323 .
- On performance of minimax second-order slope-estimating designs under variations of the model. Journal of the Indian Society of Agricultural Statistics 1991. 43:163-171 .
- On some $D_s$-optimal designs in spherical regions. Communications in Statistics: Theory and Methods 1991. 20:2965-2985 .
- A note on slope-rotatability of third-order designs. Journal of Statistical Research 1991. 25:27-32 .
- $A$-optimal design measures for polynomial regression. Pakistan Journal of Statistics, Series A 1991. 7:47-52 .
- On an alternative derivation of the moments of $A$-optimal second order designs for regression on cubes (STMA V32 2706). Journal of the Indian Society of Agricultural Statistics 1990. 42:244-246 .
- Further results on minimax designs to estimate the slope of a response surface. Biometrical Journal 1990. 32:189-194 .
- On performance of $D$- and $A$-optimal second-order designs in spherical regions under model variations. Calcutta Statistical Association Bulletin 1990. 39:185-193 .
- On efficiency of rotatable designs in estimating the slope of a second-order response surface. Pakistan Journal of Statistics, Series A 1990. 6:125-132 .
- On a problem of increasing the efficiency of second-order rotatable designs. Biometrical Journal 1990. 32:427-433 .
- Fourth-order rotatable designs: $A$-optimal measures. Statistics & Probability Letters 1990. 10:111-117 .
- Variance functions for second-order 3-grouped cylindrically rotatable designs of type 3. Pakistan Journal of Statistics, Series B 1989. 5:245-251 .
- $D$-optimal measures for fourth-order rotatable designs. Statistics 1989. 20:353-356 .
- The $m$-grouped cylindrically rotatable designs of types $(1,0,m-1)$, $(0,1,m-1)$, $(1,1,m-2)$ and $(0,0,m)$. Pakistan Journal of Statistics, Series A 1989. 5:109-117 .
- A note on $D$-optimal design measures for quadratic regression on cubes. Journal of Statistical Research 1989. 23:53-56 .
- Third-order minimax designs for the difference between two estimated responses. Biometrical Journal 1989. 31:827-832 .
- On application of association matrices in the analysis of fourth-order rotatable designs. Pakistan Journal of Statistics, Series A 1989. 5:131-142 .
- Optimal design for the estimation of variance components. Biometrika 1988. 75:75-80 .
- Optimal weighing designs: Approximate theory. Statistics 1988. 19:513-517 .
- Estimation of correlations coefficient for growth measurements under age-grouping. Human Biology 1988. 60:341-349 .
- A note on the analysis of third-order cylindrically rotatable designs of type 3. Pakistan Journal of Statistics, Series A 1988. 4:139-146 .
- Mixed-cylindrically rotatable designs. Pakistan Journal of Statistics, Series A 1987. 3:63-67 .
- The construction of third-order rotatable designs in $k$ dimensions from those in lower dimensions. Pakistan Journal of Statistics, Series A 1987. 3:11-16 .
- Minimax central composite designs to estimate the slope of a second-order response surface. Journal of the Indian Society of Agricultural Statistics 1987. 39:154-160 .
- Designs minimizing the maximum variance of the difference between estimated response at a point and that at the centre. Pakistan Journal of Statistics, Series B 1987. 3:27-31 .
- Minimax second-order designs for difference between estimated responses in extrapolation region. Statistics & Probability Letters 1987. 6:43-45 .
- On $D_s$-efficiency of $D$-optimal fourth-order rotatable design. Pakistan Journal of Statistics, Series B 1987. 3:33-37 .
- Maximum likelihood estimation of components of variance and correlations in the analysis of family data. Annals of Human Genetics 1987. 51:259-264 .
- On some efficiency problems in response surface designs. Journal of Statistical Research 1987. 21:29-34 .
- On minimizing the average variance of the estimated slope of a response surface. Pakistan Journal of Statistics, Series A 1986. 2:31-37 .
- Edgeworth series expansion for the distribution of the log of the ratio of arithmetic mean to geometric mean. Pakistan Journal of Statistics, Series A 1986. 2:69-72 .
- Minimax third-order design for the difference between two estimated responses. Journal of Statistical Research 1986. 20:65-70 .
- On cylindrically rotatable designs of type 1. Journal of Statistical Research 1986. 20:53-64 .
- Optimal statistical designs with circular string property. Communications in Statistics: Theory and Methods 1986. 15:1615-1626 .
- On $D_s$-efficiency of some $D$-optimal designs. Calcutta Statistical Association Bulletin 1985. 34:119-122 .
- Minimizing the average variance of the difference between two estimated responses. Journal of Statistical Research 1985. 19:41-48 .
- Minimax second- and third-order designs to estimate the slope of a response surface. Biometrika 1985. 72:173-178 .
- A note on construction of symmetric factorials retaining full information on main effects. The Aligarh Journal of Statistics 1985. 5:32-34 .
- Variance of the difference between two estimated responses. Journal of Statistical Planning and Inference 1985. 11:89-93 .
- $D$-optimal statistical designs with restricted string property. Communications in Statistics: Theory and Methods 1985. 14:669-677 .
- Optimal weighing designs for estimating the total weight. Journal of Statistical Research 1985. 19:21-29 .
- Some 212-point third-order rotatable designs in six dimensions. Journal of Statistical Research 1985. 19:63-64 .
- On $D$-efficiency of some third-order rotatable designs (STMA V26 3325). Journal of the Indian Society of Agricultural Statistics 1984. 36:51-67 .
- Variance functions for $m$-grouped cylindrically rotatable designs of type 3. Annals of the Institute of Statistical Mathematics 1984. 36:481-483 .
- Minimizing the maximum variance of the difference between two estimated responses. Biometrika 1984. 71:381-385 .
- Two third-order rotatable designs in four dimensions. Journal of Statistical Planning and Inference 1983. 8:241-243 .
- Cylindrically rotatable designs of Type 3: Further considerations. Biometrical Journal 1982. 24:469-475 .
- Some third-order rotatable designs. Biometrical Journal 1982. 24:257-263 .
- Some third-order rotatable designs in three dimensions. Annals of the Institute of Statistical Mathematics 1982. 34:365-371 .
- A method for constructing second-order rotatable designs. Calcutta Statistical Association Bulletin 1981. 30:139-144 .
- A comparison of equally spaced designs with different correlation structures in one and more dimensions. Canadian Journal of Statistics 1981. 9:203-208 .