- Yokohama National University, Japan;
- University of Ulster, Northern Ireland;
- Padova University, Italy;
- University of Maryland, USA;
- Museum national d’Histoirenaturelle, France;
- Deakin University, Australia;
- Firat University Turkey;
- Adiyaman University, Turkey;
- Dalhousie University, Canada;
- National Taichung Institute of Technology, Taiwan;
- University of Missouri-Kansas City, USA;
- Michigan Technological University, USA;
- Chicago University, USA;
- University of Greece,
- University of Reading, UK.