Gezegin, Cenk, and Hasan Dirik. “PLC Controlled Dual-Axis Solar Tracking System Using Astronomical Equations”. Journal of Engineering Research and Applied Science 11, no. 2 (December 31, 2022): 2133-2140. Accessed May 20, 2024. http://www.journaleras.com/index.php/jeras/article/view/289.