Teerawat Vaccharasiritham และ Suwat Athichanagorn. (2012) Evaluation and optimization of gas assisted gravity drainage process. Chulalongkorn University:ม.ป.ท.Teerawat Vaccharasiritham และ Suwat Athichanagorn. 2012. Evaluation and optimization of gas assisted gravity drainage process. ม.ป.ท.:Chulalongkorn University;Teerawat Vaccharasiritham และ Suwat Athichanagorn. Evaluation and optimization of gas assisted gravity drainage process. ม.ป.ท.:Chulalongkorn University, 2012. Print.