JULFIANTO, M.; SUANTO, E.; SIREGAR, S. N. Developing Problem Based Learning Device to Grow Students’ Mathematical Critical Thinking Ability. Jurnal Gantang, [S. l.], v. 7, n. 2, p. 173–184, 2022. DOI: 10.31629/jg.v7i2.5318. Disponível em: https://ojs.umrah.ac.id/index.php/gantang/article/view/5318. Acesso em: 6 may. 2024.