ASSARI, Amir; HOSSEINZADEH, Narges. Graph operations on Cayley graphs of semigroups. International Journal of Applied Mathematical Research, [S. l.], v. 3, n. 1, p. 54–57, 2014. DOI: 10.14419/ijamr.v3i1.1712. Disponível em: https://www.sciencepubco.com/index.php/ijamr/article/view/1712.. Acesso em: 7 may. 2024.