ZUBAIRU, M. . Factorization in the semigroup generated by the idempotents of the semigroup of full contractions of a finite chain. International Journal of Mathematical Analysis and Modelling, [S. l.], v. 8, n. 1, 2025. Disponível em: https://tnsmb.org/journal/index.php/ijmam/article/view/212. Acesso em: 28 jul. 2026.