THE EFFECT OF MODEL PROBLEM BASED LEARNING ON LEARNING OUTCOMES OF STUDENT IN GRADE VII AT SMPN 7 SIJUNJUNG. universe [Internet]. 9 Desember 2025 [dikutip 15 Agustus 2026];6(2):148-52. Tersedia pada: http://universe.ppj.unp.ac.id/index.php/universe/article/view/811