Sappaile, Baso Intang, Mokhammad Wahyudin, Ahmadin Ahmadin, Lindawati Lindawati, and Happy Kusuma Wardani. “Integrating Problem-Based Learning to Develop Critical Thinking Competencies in Secondary Education”. International Journal of Educational Research Excellence (IJERE) 4, no. 1 (June 30, 2025): 345–354. Accessed December 7, 2025. https://ejournal.ipinternasional.com/index.php/ijere/article/view/1437.