Zulfiansyah Z. MENINGKATKAN HASIL BELAJAR IPA TENTANG KEANEKARAGAMAN HEWAN DAN TUMBUHANMELALUI METODE PROBLEM BASED LEARNING. JPD [Internet]. 2015Dec.30 [cited 2024Jul.23];6(2):336 -48. Available from: https://journal.unj.ac.id/unj/index.php/jpd/article/view/498