SUSANTI, Elva. KARAKTERISASI SUATU IDEAL DARI SEMIGRUP IMPLIKATIF. Jurnal Matematika UNAND, [S. l.], v. 2, n. 4, p. 10–17, 2013. DOI: 10.25077/jmu.2.4.10-17.2013. Disponível em: https://jmua.fmipa.unand.ac.id/index.php/jmua/article/view/91. Acesso em: 4 nov. 2026.