1. a Faculty of Applied Sciences , Universiti Teknologi MARA , 40450 , Shah Alam , Malaysia
2. b Ceramics Department, Faculty of Arts and Design , Universiti Teknologi MARA , 40450 , Shah Alam , Malaysia
3. c Faculty of Science and Defence Technology , Universiti Pertahanan Nasional Malaysia , 57000 , Kuala Lumpur , Malaysia