Estimation of more than one parameters in stratified sampling with fixed budget. - Rahul Varshney; Najmussehar; M. J. Ahsan (Math. Methods Oper. Res., 2012)

An optimum multivariate stratified double sampling design in presence of non-response. - Rahul Varshney; Najmussehar; M. J. Ahsan (Optim. Lett., 2012)

On Compromise Mixed Allocation in Multivariate Stratified Sampling with Random Parameters. - Ummatul Fatima; Rahul Varshney; Siddiqui Najmussehar; Mohammad Jameel Ahsan (J. Math. Model. Algorithms Oper. Res., 2014)