Lack of Facilities as an Obstacle to the Implementation of the Independent Curriculum in the Learning Process at SDN Belitung Selatan 4. JISIP [Internet]. 2026 Jul. 11 [cited 2026 Sep. 22];10(3):2265-76. Available from: https://ejournal.mandalanursa.org/index.php/JISIP/article/view/11052