Cahyana U. PENGEMBANGAN MODUL PEMBELAJARAN KIMIA PADA MATERI LAJU REAKSI BERDASARKAN MODEL PEMBELAJARAN Discovery-Problem Base Learning. JRPK [Internet]. 2013Jun.27 [cited 2025Aug.7];3(1):166 -173. Available from: http://103.8.12.212:33180/unj/index.php/jrpk/article/view/3049