1. Faculty of Mechanical Engineering; Universiti Teknologi Malaysia; UTM Skudai 81310 Skudai Johor Malaysia
2. Green Design and Manufacture Research Group; Center of Excellence Geopolymer and Green Technology (CEGeoGTech); Universiti Malaysia Perlis; 01000 Kangar Perlis Malaysia
3. School of Manufacturing Engineering; Universiti Malaysia Perlis; 02600 Arau Perlis Malaysia
4. Soft Computing Research Group; Faculty of Computing; Universiti Teknologi Malaysia; UTM Skudai 81310 Johor Malaysia