Atika Ulya Akmal, Yohandri, and Abdul Razak. “Profile of Students’ 21st Century Skills in Digital Learning Using The Contextual Teaching and Learning (CTL) Model”. International Journal of Elementary Education 7, no. 4 (December 28, 2023): 731–741. Accessed May 12, 2024. https://ejournal.undiksha.ac.id/index.php/IJEE/article/view/66570.