L. R. Pangaribuan, S. M. Panjaitan, and M. S. R. Sihite, “IMPLEMENTATION OF STEAM-BASED PROBLEM BASED LEARNING (PBL) LEARNING MODEL TO IMPROVE STUDENTS’ CRITICAL THINKING ABILITIES”, j. manaj. pendidik., vol. 11, no. 1, pp. 1772–1784, Feb. 2026.