Ali, Machrus, Hadi Suyono, Muhammad Aziz Muslim, Muhammad Ruswandi Djalal, Yanuar Mahfudz Safarudin, and Aji Akbar Firdaus. 2022. “Determination of the Parameters of the Firefly Method for PID Parameters in Solar Panel Applications”. SINERGI 26 (2). Jakarta, Indonesia:265-72. https://doi.org/10.22441/sinergi.2022.2.016.