Sabbaghi, Fariborz, Kiomars Karimi, Maryam Akbari, and Yahya Yarahmadi. 2022. “Predicting Academic Engagement Based on Academic Optimism, Competency Perception and Academic Excitement in Students”. Iranian Journal of Educational Sociology 3 (3): 50-61. https://qijes.com/index.php/ijes/article/view/920.