Fadhilah Abd. Razak
Engineering Mathematics and Mangement Unit Department of Mechanical Engineering College of Engineering, Universiti Tenaga Nasional, Malaysia
Mahendran Shitan
Institute for Mathematical Research University Putra Malaysia, Malaysia
Amir Hisham Hashim
Department of Electrical Power Engineering College of Engineering, Universiti Tenaga Nasional, Malaysia
Izham Zainal Abidin
Department of Electrical Power Engineering College of Engineering, Universiti Tenaga Nasional, Malaysia