1. School of Materials Engineering, Universiti Malaysia Perlis; Kompleks Pengajian Jejawi 2, 02600 Arau Perlis Malaysia
2. Centre of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis; Kompleks Pengajian Jejawi 2, 02600 Arau Perlis Malaysia
3. School of Material and Mineral Resource Engineering, Universiti Sains Malaysia; 14300 Nibong Tebal Pulau Pinang Malaysia
4. Cluster of Polymer Composites (CPCs), Universiti Sains Malaysia; 14300 Nibong Tebal Pulau Pinang Malaysia