Nurhidayah, Nurhidayah. “Penerapan Model Problem Based Learning Untuk Meningkatkan Partisipasi Aktif Belajar Peserta Didik”. Prosiding Seminar Nasional PPG Universitas Mulawarman 6 (August 12, 2025): 136–141. Accessed January 21, 2026. https://jurnal.fkip.unmul.ac.id/index.php/semnasppg/article/view/5576.