1. Assistant Professor, Department of Human Resource Management, Faculty of Business, Jerash University
2. Associate Professor, Faculty of Business, Abu Dhabi University
3. Associate Professor, Faculty of Business, Department of Business Administration, Al al-Bayt University
4. Assistant Professor, College of Science and Humanities Studies, Prince Sattam Bin Abdulaziz University, As Sulayyil, Saudi Arabia; Associate Professor, School of Business,Jadara University, Irbid, Jordan