Affiliation: | 1. Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysiasmsaid@um.edu.my;3. Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia;4. Faculty of Applied Science, MARA University of Technology, Shah Alam, Malaysia;5. Department of Chemistry, Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia;6. Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia |