Mahya Dewi, Ucia. “Training on the Preparation of Case Method and PJBL-Based Learning Tools As Strengthening 21st Century Skills”. Jurnal Pengabdian Masyarakat Bestari 3, no. 9 (September 13, 2024): 507–514. Accessed September 19, 2024. https://journal.formosapublisher.org/index.php/jpmb/article/view/10684.