1. Faculty of Chemistry, National University of Uzbekistan, Tashkent, Uzbekistan
2. Department of Power Industry and Health and Safety, Faculty of Engineering and Ecology Health and Safety, Environment Protection, Korkyt Ata Kyzylorda University, Kyzylorda, Kazakhstan
3. Chemical & Materials Engineering, New Uzbekistan University, Tashkent, Uzbekistan
4. Faculty of Pedagogy, University of Tashkent for Applied Sciences, Tashkent, Uzbekistan
5. Copper Melting and Sulfate-Acid, Almalyk mining and metallurgical complex joint stock company, Almalyk, Uzbekistan
6. Faculty of Pedagogy, Tashkent State University of Economics, Tashkent, Uzbekistan
7. Faculty of Chemistry, Semnan University, Semnan, Iran