SIMANGUNSONG, IKA TRISNI; DAMANIK, Dede Parsaoran; PANJAITAN, Jelita. PENINGKATAN PENGETAHUAN KONSEPTUAL SISWA DENGAN MENGGUNAKAN MODEL PROBLEM BASED LEARNING. Jurnal Darma Agung, [S.l.], v. 28, n. 1, p. 100 - 105, may 2020. ISSN 2654-3915. Available at: <https://jurnal.darmaagung.ac.id/index.php/jurnaluda/article/view/466>. Date accessed: 20 july 2024. doi: http://dx.doi.org/10.46930/ojsuda.v28i1.466.