1. Universiti Malaysia Perlis,Faculty of Electrical Engineering & Technology,Arau,Perlis,Malaysia
2. Universiti Malaysia Perlis,Faculty of Electronic Engineering & Technology,Arau,Perlis,Malaysia
3. School of Medical Sciences, Universiti Sains Malaysia,Department of Microbiology and Parasitology,Kubang Kerian,Kelantan,Malaysia
4. Universitas Muhammadiyah Yogyakarta,Faculty of Engineering,Department of Electrical Engineering,Yogyakarta,Indonesia