Massa’deh, M. O. and Fellatah, A. (2019) “On hyper Q-fuzzy normal HX subgroup, conjugate and its normal level”, Italian Journal of Pure and Applied Mathematics, 42, pp. 624–634. Available at: https://journals.uniurb.it/index.php/ijpam/article/view/7203 (Accessed: 27 October 2026).