1. Institute of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia
2. Univeriti Tenaga Nasional, Jalan Ikram-Uniten, 43000, Kajang, Selangor, Malaysia
3. Department of Chemistry Education, Faculty of Tarbiyah, Institut Agama Islam Negeri (IAIN), 27213, Batusangkar, West Sumatera, Indonesia