DEVITA, Rischa. HOMOLOGI DARI HIMPUNAN KUBIK YANG DIREDUKSI ( ELEMENTA RY COLLAPSE). Jurnal Matematika UNAND, [S. l.], v. 2, n. 3, p. 98–102, 2013. DOI: 10.25077/jmu.2.3.98-102.2013. Disponível em: https://jmua.fmipa.unand.ac.id/index.php/jmua/article/view/78. Acesso em: 4 nov. 2026.