1. Azman Hashim International Business School, Universiti Teknologi Malaysia, Jalan Sultan Yahya Petra (Jalan Semarak), Kuala Lumpur, Malaysia.
2. Razak Faculty of Technology and Information, Universiti Teknologi Malaysia, Jalan Sulta Yahya Petra (Jalan Semarak), Kuala Lumpur, Malaysia.
3. Engineering College, Islamic University of Madinah, Kingdom of Saudi Arabia.