1. International Islamic University Malaysia,Kulliyyah of Engineering,Department of Chemical Engineering and Sustainability,Kuala Lumpur,Malaysia
2. Universiti Teknologi MARA, Permatang Pauh,Civil Engineering Centre of Studies,Pulau Pinang,Malaysia
3. School of Civil Engineering, College of Engineering, Universiti Teknologi MARA,Shah Alam,Selangor,Malaysia
4. Kulliyyah of Engineering, International Islamic University Malaysia,Department of Electrical & Computer Engineering,Kuala Lumpur,Malaysia