1. Department of Electrical EngineeringFaculty of EngineeringUniversity of MalayaLembah Pantai50603Kuala LumpurMalaysia
2. Department of Mathematical and Actuarial SciencesLee Kong Chian Faculty of Engineering ScienceUniversiti Tunku Abdul RahmanJalan Sungai Long, Bandar Sungai LongCheras43000KajangMalaysia