Elisa, Tuti, Lois Oinike Tambunan, and Yoel Octobe Purba. 2024. “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: Journal Of Social Science Research 4 (1):3510-23. https://doi.org/10.31004/innovative.v4i1.8296.