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Theodosia Ndole, Maria Ana. PENERAPAN PROBLEM BASED LEARNING DALAM MENINGKATKAN HASIL BELAJAR MATEMATIKA SISWA SEKOLAH DASAR. Jupika:J.P.M. [Internet]. 2021Mar.27 [cited 2025Feb.12];4(1):32-41. Available from: http://e-journal.uniflor.ac.id/index.php/jupika/article/view/885