MANURUNG, J. L.; HUTAPEA, N. M. .; SUANTO, E. . Analysis of mathematical critical thinking ability of junior high school students in solving problems on two-variable linear equation system. Jurnal Gantang, [S. l.], v. 9, n. 1, p. 19–26, 2024. DOI: 10.31629/jg.v9i1.6899. Disponível em: https://ojs.umrah.ac.id/index.php/gantang/article/view/6899. Acesso em: 4 apr. 2025.