SIMANGUNSONG, IKA TRISNI; 						DAMANIK, Dede Parsaoran; 						PANJAITAN, Jelita.
 PENINGKATAN PENGETAHUAN KONSEPTUAL SISWA DENGAN MENGGUNAKAN MODEL PROBLEM BASED LEARNING.
<strong>Jurnal Darma Agung</strong>, [S.l.], v. 28, n. 1, p. 100 - 105, may 2020.
ISSN 2654-3915.
Available at: &lt;<a href="http://jurnal.darmaagung.ac.id/index.php/jurnaluda/article/view/466" target="_new">http://jurnal.darmaagung.ac.id/index.php/jurnaluda/article/view/466</a>&gt;. Date accessed: 03 may 2024.
doi: <a href="http://dx.doi.org/10.46930/ojsuda.v28i1.466">http://dx.doi.org/10.46930/ojsuda.v28i1.466</a>.