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Elisa T, Tambunan LO, Purba YO. Pengaruh Model Pembeajaran Problem Based Learning Terhadap Hasi Beajar Siswa pada Materi Sistem Persamaan Linear Dua Variabel Kelas VIII Mts Swasta Al-Barokah Simalungun. Innovative [Internet]. 2024 Jan. 15 [cited 2026 May 10];4(1):3510-23. Available from: https://j-innovative.org/index.php/Innovative/article/view/8296