'IZA, Baetul; KHASANAH, Hesti. The Effectiveness Of Problem Based Learning Model Base On Open-Ended To Improve Mathematical Creative Thinking Skills . International Journal of Research in Mathematics Education, [S. l.], v. 1, n. 1, p. 55–66, 2023. DOI: 10.24090/ijrme.v1i1.8558. Disponível em: https://ejournal.uinsaizu.ac.id/index.php/ijrme/article/view/8558. Acesso em: 4 jul. 2025.