Tuyen, Le Van, and Dang Ngoc Cat Tien. “An Investigation into Factors Demotivating Students in EFL Learning at Tertiary Level”. International Journal of English Literature and Social Sciences (IJELS) 4, no. 3 (October 10, 2019). Accessed July 3, 2024. https://journal-repository.com/index.php/ijels/article/view/764.