Media Belajar Inovatif “Problem Based Learning” Bagi Siswa Kelas VI SD Negeri 091550 Rajamaligas, Kabupaten Simalungun. .bernas .jurnal .pengabdian .masyarakat [Internet]. 2025 Oct. 24 [cited 2026 Sep. 25];6(4):3873-7. Available from: https://www.ejournal.unma.ac.id/index.php/bernas/article/view/15585