GAZİ YILDIRIM, Osman, Tolga ERDOGAN, and Harun CIGDEM. “THE INVESTIGATION OF THE USABILITY OF WEB-BASED ASSIGNMENT SYSTEM”. The Eurasia Proceedings of Educational and Social Sciences 4 (September 1, 2016): 323–325. Accessed December 24, 2024. https://epess.net/index.php/epess/article/view/196.