Shyam Bihari Tiwari, Abhijeet Pandey, Ashwini Mathur and Asha Kamath (2025) “Selection of Comparable Subjects from Different Treatment Groups When Randomization is Not Feasible”, Utilitas Mathematica , 122(2), pp. 54–91. Available at: https://utilitasmathematica.com/index.php/Index/article/view/2673 (Accessed: 16 April 2026).