WAFA, M. N. Investigating the status and skills of Afghan students using the Cognitive Diagnostic Model (CDM) of Afghanistan’s 8th grade mathematics. Polyhedron International Journal in Mathematics Education, [S. l.], v. 1, n. 2, p. 62–75, 2023. DOI: 10.59965/pijme.v1i2.38. Disponível em: https://nakiscience.com/index.php/pijme/article/view/38. Acesso em: 2 feb. 2026.