1. Department of Computer System and Technology, Faculty of Computer Science and Information Technology University of Malaya Kuala Lumpur Malaysia
2. School of Science, Computing and Engineering Technologies Swinburne University of Technology Hawthorn Victoria Australia
3. Power Electronics and Renewable Energy Research Laboratory (PEARL), Department of Electrical Engineering University of Malaya Kuala Lumpur Malaysia
4. Centre for Foundation Studies in Science University of Malaya Kuala Lumpur Malaysia