Solehuddin, Moh, Sartinayanti Sartinayanti, Sitti Hasnah, Mila Karmila, and Muriyanto Muriyanto. “Enhancing Critical Thinking Skills Through Problem-Based Learning: A Classroom Intervention in Junior High School”. International Journal of Educational Research Excellence (IJERE) 4, no. 1 (June 28, 2025): 338–344. Accessed December 7, 2025. https://ejournal.ipinternasional.com/index.php/ijere/article/view/1390.