MAJUMDAR, S.; HOSSAIN, M. A.; DEY, K. K. The endomorphism semigroup of an endomapping of a finite set. GANIT: Journal of Bangladesh Mathematical Society, [S. l.], v. 31, p. 71–77, 2012. DOI: 10.3329/ganit.v31i0.10310. Disponível em: https://banglajol.info/index.php/GANIT/article/view/10310. Acesso em: 17 jul. 2024.