SHAHBAZ, Leila. \(\mathcal{M}\)-injectivity in the category Act-S. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 29, p. 119–134, 2012. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6050. Acesso em: 18 jul. 2026.