1. Department of Science in Engineering, Kulliyyah of Engineering, International Islamic University, 50728 Gombak, Kuala Lumpur, Malaysia
2. Department of Mechanical Engineering, Kulliyyah of Engineering, International Islamic University, 50728 Gombak, Kuala Lumpur, Malaysia
3. School of Mathematical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia