Apriliana S. Analisis Kebutuhan Bahan Ajar Kelas IV SDN Gayam 1 Pada Materi Sumber Daya Alam. JJP [Internet]. 2024May25 [cited 2026Jun.29];4(02):152-9. Available from: https://ejournal.jendelaedukasi.id/index.php/JJP/article/view/735