APRILIANA S, ZUNAIDAH FN, NURMILAWATI M. VALIDITAS PENGEMBANGAN BAHAN AJAR IPAS MATERI SUMBER DAYA ALAM UNTUK SISWA KELAS IV SDN GAYAM 1. science [Internet]. 2024Aug.9 [cited 2024Oct.25];4(3):193-206. Available from: https://jurnalp4i.com/index.php/science/article/view/3163