Alnursa D. APPLICATION OF THE CONSTRUCTIVIST LEARNING MODEL TO IMPROVE LEARNING OUTCOMES OF GRADE X STUDENTS IN THE SUBJECT OF GEOGRAPHY WITH THE LITHOSPHERE MATERIAL AT STATE SENIOR HIGH SCHOOL 34 SOUTH HALMAHERA. JUPEK [Internet]. 8Jul.2026 [cited 5Oct.2026];7(2):243-51. Available from: http://www.jurnal.isdikkieraha.ac.id/index.php/jupek/article/view/1419