M. Ramakrishnan, and R. Ravanan. “NON-PARAMETRIC METHODS FOR COMPARING TWO SURVIVAL DISTRIBUTIONS”. Researchers World - International Refereed Social Sciences Journal 4, no. 2 (September 19, 2021): 121–125. Accessed May 16, 2024. https://www.researchersworld.com/index.php/rworld/article/view/1046.