Danish , Faizan, S.E.H. Rizvi, Manish Kumar Sharma, Sudhakar Dwivedi, Bupesh Kumar, and Sanjeev Kumar. “A MATHEMATICAL PROGRAMMING APPROACH IN OPTIMUM STRATIFICATION UNDER NEYMAN ALLOCATION FOR TWO STRATIFYING VARIABLES”. Journal of Reliability and Statistical Studies 12, no. 02 (December 10, 2019): 173–185. Accessed June 3, 2026. https://journals.riverpublishers.com/index.php/JRSS/article/view/20773.