Ranggitia, Remma. “USE OF THE ‘JALASAKA’ EDUCATIONAL BOOKLET TO IMPROVE 6TH GRADE ELEMENTARY SCHOOL STUDENTS’ UNDERSTANDING OF THE PLANET EARTH”. Jurnal Keguruan dan Ilmu Pendidikan 12, no. 2 (November 1, 2025). Diakses Desember 10, 2025. https://journalmagistra.org/index.php/magistra/article/view/120.