Theesis Suwannakul และ Suwat Athichanagorn. (2010) Improving oil recovery using double displacement process. Chulalongkorn University:ม.ป.ท.Theesis Suwannakul และ Suwat Athichanagorn. 2010. Improving oil recovery using double displacement process. ม.ป.ท.:Chulalongkorn University;Theesis Suwannakul และ Suwat Athichanagorn. Improving oil recovery using double displacement process. ม.ป.ท.:Chulalongkorn University, 2010. Print.