Hastomo, Tommy, and Linda Septiyana. “The Investigation of students’ Engagement in Online Class During Pandemic Covid-19”. Jurnal Penelitian Ilmu Pendidikan 15, no. 2 (October 1, 2022): 155–164. Accessed May 15, 2025. https://jurnal.uny.ac.id/index.php/jpip/article/view/49512.