Zaidin, Muhammad Arifin, Kusmaladewi Kusmaladewi, and Aziz Thaba. “Analysis of Professional Competencies and Basic Skills in Distance Education Tutor Tutorials”. Cypriot Journal of Educational Sciences 16, no. 6 (December 31, 2021): 3168–3183. Accessed May 18, 2024. https://un-pub.eu/ojs/index.php/cjes/article/view/6531.