| Name | University | other |
| Kolawole Adeniyi: | Obafemi Awolowo University, Ile-Ife, Nigeria | ORCID-ID |
| Oluwafemi E. Bamigbade: | Obafemi Awolowo University, Ile-Ife, Nigeria | ORCID-ID |
| François Conrad: | Leibniz Universität Hannover, Hannover, Germany | ORCID-ID |
| Adam Glaz: | University of Lublin, Lublin, Poland | |
| Pawel Mecner: | University of Szczecin, Szczecin, Poland | ORCID-ID |
| Peter Schildhauer: | Martin-Luther-Universität Halle-Wittenberg, Halle, Germany | |
| Mohammed Q. Shormani: | Ibb University, Ibb, Yemen | ORCID-ID |