Ullah, Muhammad Shariat, and Muhammad Abdul Aziz. “Online Class: Stress, Anxiety, Optimism and Wellbeing”. Dhaka University Journal of Business Studies 42, no. 2 (May 8, 2023): 25–45. Accessed November 21, 2024. https://banglajol.info/index.php/DUJBSt/article/view/59714.