Hung, Le Quang, Nguyen Thi Mai Le, Nguyen Khanh Toan, and Nguyen Thi Lan Anh. “Chemical Treatment of Fouled Heat Exchangers in Dung Quat Refinery”. Petrovietnam Journal 70 (July 29, 2016): 54-61. Accessed May 30, 2026. http://www.pvj.com.vn/index.php/TCDK/article/view/533.