Qudsyi, Hazhira, Hariz Enggar Wijaya, Ahmad Rusdi, Mira Aliza Rachmawati, and Thobagus Muhammad Nu’man. “Students’ Gratitude and Engagement in Online Learning: An Experimental Study”. International Journal of Innovative Research and Scientific Studies 7, no. 4 (August 22, 2024): 1480–1490. Accessed September 26, 2024. http://ijirss.com/index.php/ijirss/article/view/3446.