Machmud, Mochamad. “Sistem Desain Otomatis Area Solution Tank Berbasis Microkontroller Di PT Unichem Candi Indonesia (Plant Gresik)”. E-Link: Jurnal Teknik Elektro dan Informatika 15, no. 2 (November 18, 2020): 36–41. Accessed June 7, 2025. https://journal.umg.ac.id/index.php/e-link/article/view/1991.