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Syamsinar. MENINGKATKAN PRESTASI BELAJAR MATEMATIKA MATERI TEOREMA PYTHAGORAS PADA SISWA KELAS VIII.8 MTSN 1 OKU TIMUR MELALUI PENERAPAN PROBLEM BASED LEARNING. INTEL [Internet]. 2022 Oct. 9 [cited 2026 Feb. 26];1(1):119-30. Available from: https://journals.eduped.org/index.php/intel/article/view/209