1. Industrial Engineering Department, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
2. Tourism Studies Department, Faculty of Tourism and Hotels, University of Sadat City, Sadat 32897, Egypt
3. Tourism Studies Department, Al-Alson High Institute for Tourism and Hotels, Cairo 11511, Egypt
4. Business Administration Department, Faculty of Commerce, Menofia University, Menofia, Shebin Elkom 32511, Egypt
5. Hotel Management Department, Faculty of Tourism and Hotels, University of Sadat City, Sadat 32897, Egypt
6. Department of Management and Hotel, Resort & Hospitality Management, Southern Utah University, Cedar City, UT 84720, USA