1. Center for Chemical Engineering Studies Universiti Teknologi MARA Cawangan Pulau Pinang, Kampus Permatang Pauh 13500 Permatang Pauh, Pulau Pinang Malaysia
2. School of Chemical Engineering Universiti Teknologi MARA, Cawangan Johor, Kampus Pasir Gudang 81750 Masai Johor Malaysia
3. School of Chemical Engineering College of Engineering Universiti Teknologi MARA Cawangan Terengganu, Kampus Bukit Besi 23200 Dungun, Terengganu Malaysia
4. Faculty of Chemical and Energy Engineering Universiti Reknologi Malaysia 81310 Skudai Johor Malaysia