Mehedi Hasan Ifti, Paolo Saona, Muhammad Tofazzel Hossain, Shahnur Azad Chowdhury, and Md. Abul Kalam Azad. “Student Engagement in Online Classes During COVID-19: A Sentiment Analysis”. Bangladesh Journal of Integrated Thoughts 17, no. 2 (June 1, 2022). Accessed November 21, 2024. http://bjitbd.net/oj/index.php/bjit/article/view/244.