PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS PROBLEM BASED LEARNING (PBL) MATERI PECAHAN DI KELAS V SD NEGERI 107418 BANGUN SARI BARU. JOURNAL OF SCIENCE AND SOCIAL RESEARCH, [S. l.], v. 6, n. 3, p. 880–886, 2023. DOI: 10.54314/jssr.v6i3.2126. Disponível em: https://jurnal.goretanpena.com/index.php/JSSR/article/view/2126.. Acesso em: 13 apr. 2026.