Ridhonmas, Adjie, Estiyanti Ekawati, and Agus Samsi. “Pembuatan Operator Training Simulator Proses Sintesis Pabrik Urea Menggunakan Fasilitas Function Block Pada Distributed Control System”. Jurnal Otomasi Kontrol dan Instrumentasi 5, no. 1 (March 26, 2015): 21. Accessed October 9, 2025. https://journals.itb.ac.id/index.php/joki/article/view/3965.