PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS PROBLEM BASED LEARNING (PBL) MATERI PECAHAN DI KELAS V SD NEGERI 107418 BANGUN SARI BARU. (2023). JOURNAL OF SCIENCE AND SOCIAL RESEARCH, 6(3), 880-886. https://doi.org/10.54314/jssr.v6i3.2126