Davvaz, Bijan, and Saber Omidi. “C-Γ-Hyperideal Theory in Ordered Γ-Semihypergroups”. Journal of Mathematical and Fundamental Sciences 49, no. 2 (October 3, 2017): 181-192. Accessed October 5, 2025. https://journals.itb.ac.id/index.php/jmfs/article/view/2255.