WAHYUNI, S.; NOVIANI, J.; ISMAYANTI; SAPUTRA, E. Analysis of High School Students’ Difficulties in the Material of Two Variable Linear Equation Systems. EL-Hadhary: Jurnal Penelitian Pendidikan Multidisiplin, [S. l.], v. 1, n. 01, p. 39–51, 2023. DOI: 10.61693/elhadhary.vol101.2023.39-51. Disponível em: https://journal.webammi.org/index.php/JEH/article/view/8. Acesso em: 27 mar. 2026.