1. Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, Hungary
2. Ministry of Science and Technology - Materials Research Directorate, Baghdad, Iraq
3. Thi-Qar Technical College, Southern Technical University (STU), Basra, Iraq
4. Higher Education and Industrial Cooperation Centre, University of Miskolc, Miskolc-Egyetemváros, Hungary
5. Ferenc Rakoczi II Transcarpathian Hungarian College of Higher Education, Beregszász, Ukraine
6. Department of Physical Chemistry, Faculty of Chemistry, University of Lodz, Lodz, Poland