Suparmi, Anik, Paidi Paidi, and Helen Grace B Gonzales. “Development of Problem-Based Learning Materials on Biodiversity Using Local Potential of Mangrove Forests to Enhance Critical Thinking Skills of Phase E Students”. Jurnal Kependidikan: Penelitian Inovasi Pembelajaran 9, no. 2 (November 1, 2025): 109–117. Accessed January 25, 2026. https://jurnal.uny.ac.id/index.php/jk/article/view/83620.