Wahyu Cahyono, Mahrus Ali, Hidayatul Nurohmah, and Budiman. 2019. “Ant Colony Optimazation Sebagai Tuning PID Pada Single Axis Tracking Photovoltaic”. SinarFe7 2 (1):455-58. https://journal.fortei7.org/index.php/sinarFe7/article/view/482.