ANALISIS MODEL PROBLEM BASED LEARNING MENGGUNAKAN QUASI EKSPERIMEN DESIGN TERHADAP HASIL BELAJAR IPA SISWA SMP aNEGERI 1 JORLANG HATARAN. Jurnal Metabio, [S. l.], v. 3, n. 1, p. 28–36, 2021. DOI: 10.36985/7d91av62. Disponível em: http://jurnal.usi.ac.id/index.php/jpbm/article/view/317. Acesso em: 2 nov. 2025.