PENGEMBANGAN E-LKPD BERBASIS PROBLEM BASED LEARNING MATERI TUMBUHAN SUMBER KEHIDUPAN DI BUMI PADA PEMBELAJARAN IPAS KELAS IV SEKOLAH DASASR. Widyajaya: Jurnal Mahasiswa Prodi PGSD, [S. l.], v. 5, n. 2, p. 298–311, 2025. Disponível em: https://journal.mpukuturan.ac.id/index.php/widyajaya/article/view/1355.. Acesso em: 14 may. 2026.