Firman, B., wiwik handajadi, and S. . Maulana. “SISTEM PENGENDALIAN MOTOR INDUKSI 3 FASE BERBASIS PROGRAMMABLE LOGIC CONTROL &Amp; VARIABEL SPEED DRIVE BERPENAMPIL HUMAN MACHINE INTERFACE”. Jurnal Elektrikal, vol. 8, no. No. 2, Dec. 2021, pp. 37-44, https://ejournal.akprind.ac.id/index.php/elektrikal/article/view/3799.