S. A. BALDE, M. B. F. BEN MAAOUIA, and A. O. CHBIH, “Strongly Hopfian Objets and Strongly Cohopfian Objets in the Categories of AGr(A − Mod) and COMP(AGr(A − Mod))”, ijmcr, vol. 11, no. 06, pp. 3479-3493, Jun. 2023.