Peningkatan Keaktifan Peserta Didik pada Pembelajaran IPAS Menggunakan Model Problem Based Learning Dengan Media Audio-Visual di Kelas IV SD: (Increasing Student Activity in Science and Technology Learning Using the Problem-Based Learning Model with Audio-Visual Media in Class IV SD). BIODIK, v. 11, n. 1, p. 274–279, 31 Mar.2025.