1. Department of Chemistry, Universiti Teknologi Malaysia, Johor, Malaysia
2. Department of Chemistry, Sana’a University, Sana’a, Yemen
3. Department of Statistics and Informatics, University of Mosul, Mosul, Iraq
4. Department of Mathematical Sciences, Universiti Teknologi Malaysia, Johor, Malaysia
5. Advanced Membrane Technology Centre, Universiti Teknologi Malaysia, Johor, Malaysia
6. College of Computers and Information Technology, Nawroz University, Kurdistan region, Iraq