Abdelrahman Sheta. “Visitor Sentiment and Behavioral Analytics: Leveraging NLP to Continuously Improve Hajj and Umrah Services”. International Journal of Scientific Research in Computer Science, Engineering and Information Technology 11, no. 5 (October 31, 2025): 379–389. Accessed December 6, 2025. https://mail.ijsrcseit.com/index.php/home/article/view/CSEIT251117139.