University of Sarajevo - Bosnia-Herzegovina

Veliko Tarnovo St. Cyril and St. Methodius University - Bulgaria

Agricultural University Plovdiv - Bulgaria

Varna Technical University - Bulgaria

Sofia Technical University - Bulgaria

Trakia Stara Zagora University - Bulgaria

Justus Liebig University Giessen - Germany

Zhetysu University - Kazakhstan

Gilan Kadri Zeka University - Kosovo

“Hasan Pristina” University of Pristina - Kosovo

Ukshin Hoti University of Prizren - Kosovo

University of Zawia - Libya

International Balkan University - Macedonia

Hormuud University – Somalia

CIEMAT - Almeria Solar Technology Research Center - Spain

Southern University - USA

Imam Tirmizi International Research Center - Uzbekistan

Samarkand Institute of Veterinary Medicine - Uzbekistan

Tashkent State University of Uzbek Language and Literature - Uzbekistan

Urgench State University - Uzbekistan