Rojak, Rojak. “Penerapan Model Pembelajaran Problem Based Instruction (PBI) Berbantuan Media Audiovisual Untuk Meningkatkan Kualitas Pembelajaran IPA”. Progressive of Cognitive and Ability 2, no. 1 (January 5, 2023): 146–153. Accessed December 20, 2025. https://journals.eduped.org/index.php/jpr/article/view/160.