HANDAYANINGTYAS , T. . UPAYA MENINGKATKAN KEAKTIFAN SISWA MELALUI MODEL PROBLEM BASED LEARNING PADA MATA PELAJARAN IPA DI SEKOLAH DASAR. EDUCATIONAL : Jurnal Inovasi Pendidikan & Pengajaran , [S. l.], v. 3, n. 1, p. 118-124, 2023. DOI: 10.51878/educational.v3i1.2115. Disponível em: https://jurnalp4i.com/index.php/educational/article/view/2115. Acesso em: 26 nov. 2024.