1. Physical‐Technical Institute Uzbekistan Academy of Sciences Tashkent Uzbekistan
2. Research Institute of Physics of Semiconductors and Microelectronics Tashkent Uzbekistan
3. Punjab Engineering College (Deemed to be University) Chandigarh India
4. Urgench State University Urgench Uzbekistan
5. Urgench Branch of Tashkent University of Information Technologies Urgench Uzbekistan
6. Bukhara State University Bukhara Uzbekistan