Waa, Yulce, et al. “PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING (PBL) TERHADAP HASIL BELAJAR PADA MATERI PEMBELAJARAN EKOSISTEM DI SMP MUHAMMADIYAH AIMAS KABUPATEN SORONG”. Biolearning Journal, vol. 12, no. 2, July 2025, https://e-journal.unimudasorong.ac.id/index.php/biolearningjournal/article/view/3842.