Haswendra, Aditya Reza. “AN OVERVIEW OF THE DEVELOPMENT OF SAFETY SYSTEMS IN INDUSTRIAL CONTROL SYSTEMS”. Journal of Mechanical Science and Engineering 8, no. 1 (March 29, 2021): 019–022. Accessed November 21, 2024. https://jmse.ejournal.unsri.ac.id/index.php/jmse/article/view/52.