S. Karban, Abdullah., Mahmud. B.M. Jusan, Abdul Halim. Hussein, and Naif. S. Al-Aboud. “The Historical Development of Hospitality in Makkah”.
International Journal of Engineering and Technology 7, no. 3.30 (August 24, 2018): 225–229. Accessed April 6, 2025.
https://sciencepubco.com/index.php/IJET/article/view/18246.