Aisa, Retcia, Kusnadi Kusnadi, and Rini Solihat. “Application of Problem-Based Learning in Biotechnology Learning Contains Local Potential Jruek Drien Aceh to Improve Problem-Solving and Self-Directed Learning Skills of High School Students”. Jurnal Penelitian Pendidikan IPA 9, no. 11 (November 25, 2023): 10128–10137. Accessed May 9, 2024. https://jppipa.unram.ac.id/index.php/jppipa/article/view/5047.