“Evaluating the Difficulty Level of Objective Multiple-Choice Test Questions in the Foundation Module in the Physical Education Course for Students at the Vietnam National University of Agriculture”. Tạp chí khoa học Đào tạo và Huấn luyện Thể thao, no. Đặc biệt (December 10, 2024): 95. Accessed December 28, 2024. https://tckhupes1.edu.vn/index.php/upes1/article/view/2134.