lastri sulastri, Widianto J, Sundari S. PENINGKATAN KEMAMPUAN BERPIKIR KRITIS DAN HASIL BELAJAR IPA MELALUI MODEL PEMBELAJARAN PROBLEM BASED LEARNING DI KELAS VIII SMPN 1 PANEKAN. jppg [Internet]. 2023Aug.16 [cited 2025Dec.4];1(1):1-12. Available from: http://www.ejournal.staidarussalamlampung.ac.id/index.php/jppg/article/view/509