sebhatu, kifle tesfamariam, Hailemichael Tesfay, and Aregawi Tesfay. “Relative Efficiency of Rural Saving and Credit Cooperatives: An Application of Data Envelopment Analysis”. International Journal of Cooperative Studies 2, no. 1 (May 30, 2013): 16–25. Accessed May 1, 2024. http://www.worldscholars.org/index.php/ijcs/article/view/263.