Ardi, Syahril, and Rika Kusuma. 2016. “DISAIN OTOMATISASI PROSES BVC (BASE VALVE COMPLETE) ASSEMBLY PRESS BERBASIS KENDALI PROGRAMMABLE LOGIC CONTROLLER”. SINERGI 20 (1). Jakarta, Indonesia:1-8. https://doi.org/10.22441/sinergi.2016.1.001.