Hai, V. V., O. Serebrennikova, and Y. Savinykh. “Analysis of Geochemical Characteristics on Database of Hydrocarbon Composition of Crude Oils from Bach Ho Field by Gas Chromatography-Mass Spectrometry Method (GC-MS)”. Petrovietnam Journal, Vol. 11, Nov. 2013, pp. 22-27, https://www.pvj.vn/index.php/TCDK/article/view/719.