IMPLEMENTATION OF THE PROBLEM BASED LEARNING MODEL ON STUDENT LEARNING OUTCOMES IN THE HUMAN CIRCULATION SYSTEM IN CLASS VIII SMP NEGERI 4 STABAT. JPP [Internet]. 2026 Jun. 30 [cited 2026 Jul. 9];14(2):62-7. Available from: https://jurnal.unimed.ac.id/2012/index.php/pelita/article/view/74266