1. Department of Chemistry, Universiti Teknologi Malaysia, Johor, Malaysia
2. Department of Chemistry, Faculty of Science, Sana’a University, Sana’a, Yemen
3. Department of Statistics and Informatics, University of Mosul, Mosul, Iraq
4. Department of Mathematical Sciences, Faculty of Science, Universiti Teknologi Malaysia, Johor, Malaysia
5. Advanced Membrane Technology Centre, Universiti Teknologi Malaysia, Johor, Malaysia