Pillai, Sunil Prakash, and Manitha Rijo. “Evaluating the Level of Difficulty of University Statistical Course Assessments: A Modern Perspective through Item Analysis”. The Eurasia Proceedings of Educational and Social Sciences (September 29, 2024): 70–77. Accessed November 7, 2024. https://epess.net/index.php/epess/article/view/832.