“DEVELOPMENT OF INTERACTIVE POWERPOINT LEARNING MEDIA THEME 5 ECOSYSTEM SUBTHEME 1 ECOSYSTEM’S COMPONENT FOR FIFTH GRADE STUDENTS OF SDN 007 TEBING KARIMUN”. Primary: Jurnal Pendidikan Guru Sekolah Dasar 9, no. 4 (August 25, 2020): 421–431. Accessed December 17, 2025. https://primary.ejournal.unri.ac.id/index.php/JPFKIP/article/view/845.