“Implementasi Model Problem Based Instruction Terhadap Penguasaan Materi Hukum Newton Dan Kecakapan Berpikir Kritis Siswa”. Science and Physics Education Journal (SPEJ) 4, no. 2 (June 27, 2021): 82–90. Accessed April 16, 2026. https://journal.ipm2kpe.or.id/index.php/SPEJ/article/view/2422.