ANISA, Uirma Isnani; KARTINI, Kartini. Analysis of Student Errors in Solving Relation and Function Problems Based on Kastolan Error Theory Class VIII SMP IT Bangkinang. Edumatica : Jurnal Pendidikan Matematika, [S. l.], v. 13, n. 2, p. 172–180, 2023. DOI: 10.22437/edumatica.v13i02.19473. Disponível em: https://online-journal.unja.ac.id/edumatica/article/view/19473. Acesso em: 5 apr. 2025.