MELLAWATY, M.; SUKESTIYARNO, Y.; ZAENURI, Z.; ISNARTO, I. Level of critical thinking of junior high school students in solving mathematical problems . Polyhedron International Journal in Mathematics Education, [S. l.], v. 1, n. 1, p. 53–61, 2023. DOI: 10.59965/pijme.v1i1.1. Disponível em: https://demo.aljibra.or.id/index.php/pijme/article/view/1. Acesso em: 20 mar. 2026.