KOTEN, O.; SULISTYOWATI, F.; AHSAN, M. G. K.; KUNCORO, K. S. Understanding common errors in solving math problems on systems of linear equations with two variables: A study of 8th grade students. Union: Jurnal Ilmiah Pendidikan Matematika, [S. l.], v. 11, n. 2, p. 348–355, 2023. DOI: 10.30738/union.v11i2.14910. Disponível em: https://jurnal.ustjogja.ac.id/index.php/union/article/view/14910. Acesso em: 20 apr. 2024.