SEPTIANI, Resa; FIRMANSYAH, Dani. Mapping Cognitive Breakdown in Mixed Integer Operations: A Newman Error Analysis of Secondary Students’ Problem-Solving. Jurnal Didactical Mathematics , [S. l.], v. 8, n. 1, p. 67–82, 2026. DOI: 10.31949/dm.v8i1.16978. Disponível em: https://www.ejournal.unma.ac.id/index.php/dm/article/view/16978. Acesso em: 16 jun. 2026.