PENGEMBANGAN E-MODUL PEMBELAJARAN BERBASIS PROBLEM BASED LEARNING PADA MATA PELAJARAN IPAS DI KELAS IV SEKOLAH DASAR. Jurnal Tunas Pendidikan, [S. l.], v. 8, n. 2, p. 540–556, 2026. DOI: 10.52060/pgsd.v8.i2.3208. Disponível em: https://ejournal.ummuba.ac.id/index.php/pgsd/article/view/3208. Acesso em: 3 apr. 2026.