1. Department of Chemical Engineering Technology, Faculty of Engineering TechnologyUniversiti Malaysia Perlis Kangar Perlis Malaysia
2. Department of Petrochemical Engineering, Faculty of Engineering and Green TechnologyUniversiti Tunku Abdul Rahman, Jalan Universiti Kampar Perak Malaysia
3. Department of Chemical Engineering, Lee Kong Chian Faculty of Engineering and ScienceUniversiti Tunku Abdul Rahman, Sungai Long Campus, Jalan Sungai Long, Bandar Sungai Long Kajang Selangor Malaysia
4. Department of Chemical Science, Faculty of ScienceUniversiti Tunku Abdul Rahman, Jalan Universiti Kampar Perak Malaysia