1. Department of Aerospace Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang, Malaysia
2. Department of Mechanical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia
3. Department of Engineering Management, College of Engineering, Prince Sultan University, Riyadh, Saudi Arabia
4. Department of Mechanical Design and Production Engineering. Faculty of Engineering, Zagazig University, Zagazig, Egypt