Youssef, F.Y. and Othman, Z.I. 2023. The Hierarchical Classification for The Rituals of Hajj Using Ontology. Journal of Al-Qadisiyah for Computer Science and Mathematics. 15, 1 (Feb. 2023), Comp Page 79–95. DOI:https://doi.org/10.29304/jqcm.2023.15.1.1142.