UMMAH, S. K.; IN’AM, A.; AZMI, R. D. Creating manipulatives: improving students’ creativity through project-based learning. Journal on Mathematics Education, [S. l.], v. 10, n. 1, p. 93–102, 2019. Disponível em: https://jme.ejournal.unsri.ac.id/index.php/jme/article/view/3779. Acesso em: 7 jul. 2025.