Abbasi, M.Y., Abul Basar, and Akbar Ali. “ON BI-Γ-IDEALS IN Γ-SEMIGROUPS WITH INVOLUTION”. Italian Journal of Pure and Applied Mathematics 41 (February 27, 2019): 399–404. Accessed October 17, 2026. https://journals.uniurb.it/index.php/ijpam/article/view/7114.