Napang, Marthen, Farida Patittingi, Ruslan Hambali, and Marcel Hendrapati. 2019. “Safety Zones Around Offshore Installations”. International Journal of Global Community 2 (2 - July), 139-50. https://www.riksawan.com/IJGC-RI/index.php/IJGC-RI/article/view/39.