PENGEMBANGAN LEMBAR KERJA PESERTA DIDIK (LKPD) BERBASIS PROBLEM BASED LEARNING (PBL) MATERI PECAHAN DI KELAS V SD NEGERI 107418 BANGUN SARI BARU. JSSR [Internet]. 2023 Oct. 31 [cited 2026 Aug. 2];6(3):880-6. Available from: https://goretanpena.com/jurnal/index.php/JSSR/article/view/2126