Penerapan Model Problem Based Learning Untuk Meningkatkan Partisipasi Aktif Belajar Peserta Didik. semnasppg [Internet]. 2025 Aug. 12 [cited 2026 Aug. 15];6:136-41. Available from: https://jurnal.fkip.unmul.ac.id/index.php/semnasppg/article/view/5576