Kasimakhunova A.M. , Naimanbaev R. , Akhunov K.Kh. , Khomidov A. K. , Tursunov H. Kh. “DEVELOPMENT AND RESEARCH OF OPTOELECTRONIC SECONDARY ENERGY TRANSFORMER”. PalArch’s Journal of Archaeology of Egypt / Egyptology, vol. 17, no. 6, Dec. 2020, pp. 3189 -5, http://mail.palarch.nl/index.php/jae/article/view/1291.