1. Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Malaysia
2. Ionics Materials & Devices Research Laboratory (iMADE), Institute of Science, Universiti Teknologi MARA, 40450 Shah Alam, Malaysia
3. Faculty of Art & Design, Universiti Teknologi MARA, 40450 Shah Alam, Malaysia
4. Faculty of Defence Science and Technology, Universiti Pertahanan Nasional Malaysia, 57000 Kuala Lumpur, Malaysia