Kelesbayev, D., K. Kalykulov, Y. Yertayev, A. Turlybekova, and A. Kamalov. “A Case Study for Using the Quality Function Deployment Method As a Quality Improvement Tool in the Universities”. International Review of Management and Marketing, vol. 6, no. 3, July 2016, pp. 569-76, https://www.econjournals.com/index.php/irmm/article/view/2584.