Koçyiğit, Mehmet, and Cahit Erdem. “A Content Analysis of Graduate Research on English Preparatory Programs at Universities”. Journal of Human Sciences 15, no. 3 (July 30, 2018): 1466–1480. Accessed May 5, 2024. https://www.j-humansciences.com/ojs/index.php/IJHS/article/view/5414.