HARAHAP, M. A. A.; HERMAN, T.; HASANAH, A. Analysis of Learning Obstacles in the Metapedadidactic Stage of the System of Linear Equations in Two Variables (SLETV). Universal Education Journal of Teaching and Learning, [S. l.], v. 2, n. 4, p. 144–151, 2025. DOI: 10.63081/uejtl.v2i4.80. Disponível em: https://journal.uepublisher.com/uejtl/index.php/home/article/view/80. Acesso em: 3 apr. 2026.