Ismail, R. ., Makhtar, M. ., Hasan, H. ., Mamat, A. R., & Patria, L. . (2025). Ontology Model for Hajj using Ontology Development 101 Methodology. Journal of Advanced Research Design, 141(1), 241–256. https://doi.org/10.37934/ard.141.1.241256