Development of Web-Based Learning Media for Matrix Operations and 4×4 Determinant Calculation with an Adaptation of the Sarrus Method. Jurnal Mercumatika : Jurnal Penelitian Matematika dan Pendidikan Matematika, [S. l.], v. 9, n. 2, 2025. DOI: 10.26486/jm.v9i2.4648. Disponível em: https://ejurnal.mercubuana-yogya.ac.id/index.php/mercumatika/article/view/4648. Acesso em: 30 jun. 2026.