Miftachul Ulum, Haryanto, and Wahyudi. “PENENTUAN PENGISIAN VOLUME BOTOL MENGGUNAKAN PID (PROPORTIONAL INTEGRAL DERIVATIVE) BERBASIS RASPBERRY PI”. SinarFe7, vol. 3, no. 1, Sept. 2020, https://journal.fortei7.org/index.php/sinarFe7/article/view/315.