PURBA, Elda Naida; PANJAITAN, Simon M; SAUDURAN, Golda Novatrasio. Efektivitas Model Problem Based Learning Berbantuan Metode Peer Teaching Terhadap Kemampuan Berpikir Kritis Matematis Siswa Pada Materi Sistem Persamaan Linear Dua Variabel Kelas VIII SMP Adhyaksa Medan T.A. 2023/2024. Jurnal Pendidikan Tambusai, [S. l.], v. 7, n. 3, p. 25871–25879, 2023. DOI: 10.31004/jptam.v7i3.10757. Disponível em: http://jptam.org/index.php/jptam/article/view/10757. Acesso em: 11 feb. 2025.