Sari PA, Lufri L. DEVELOPMENT OF HUMAN DIGESTIVE SYSTEM MODULE BY USING GUIDED DISCOVERY LEARNING FOR GRADE VIII SMP/MTs STUDENTS. universe [Internet]. 2021 Jun. 16 [cited 2026 Apr. 17];2(1):25-30. Available from: http://universe.ppj.unp.ac.id/index.php/universe/article/view/39