HASAN, Ayazul. On the Socles of Commutator Invariant Submodules of $QTAG$-Modules. Armenian Journal of Mathematics, Yerevan, Armenia, v. 10, n. 7, p. 1–11, 2018. Disponível em: http://test.armjmath.sci.am/index.php/ajm/article/view/216. Acesso em: 9 may. 2026.