DHAFFAH, Vallieskha Nurmanita; MAUDY, Septiani Yugni; PUTRA, Mulia. Learning Obstacles in Understanding Pyramid Volume: An Epistemological and Didactical Analysis within the Didactical Design Research Framework. Jurnal Didactical Mathematics, [S. l.], v. 8, n. 2, p. 345–370, 2026. DOI: 10.31949/dm.v8i2.18713. Disponível em: https://www.ejournal.unma.ac.id/index.php/dm/article/view/18713. Acesso em: 6 aug. 2026.