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PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING TERHADAP KEMAMPUAN BERPIKIR KRITIS SISWA SEKOLAH DASAR. JH [Internet]. 2024 Jul. 14 [cited 2026 Mar. 22];15(1):138-44. Available from: https://jurnal.unimed.ac.id/2012/index.php/handayani/article/view/58575