Zhaksylyk, Nurkozha, Naci Genç, and Sherzod Ramankulov. “Impact of Solar Incidence Angle on Output Power of PV Systems: A Field Study in Turkistan Region, Kazakhstan”. International Journal of Environmental Science and Green Technology, ISSN: 3080-8693 1, no. 1 (March 25, 2025): 47–55. Accessed April 22, 2026. http://journals.ayu.edu.kz/index.php/ijesgt/article/view/4977.