1. Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
2. Department of Chemical Engineering, Faculty of Engineering and Engineering Technology, PMB 0248 Abubakar Tafawa Balewa University, Bauchi, Nigeria
3. School of Technology Management and Logistics, College of Business, Universiti Utara Malaysia, 06010 UUM Sintok, Kedah, Malaysia