Quan, T. M., N. Q. Huy, T. D. Tung, D. Q. Trieu, T. Q. Diep, D. T. Tuyen, N. T. T. Tuyen, and N. D. Hai. “Food Safety Management on-Board Offshore Floating Structures and Installations in Oil and Gas Industry”. Petrovietnam Journal, Vol. 4, Apr. 2016, pp. 48-55, http://www.pvj.com.vn/index.php/TCDK/article/view/504.