Kullapat Phisitkul และ Wanchai Teparaksa. (2009) Assessment of tunelling under existing MRT tunnel in Bangkok subsoil. Chulalongkorn University:ม.ป.ท.Kullapat Phisitkul และ Wanchai Teparaksa. 2009. Assessment of tunelling under existing MRT tunnel in Bangkok subsoil. ม.ป.ท.:Chulalongkorn University;Kullapat Phisitkul และ Wanchai Teparaksa. Assessment of tunelling under existing MRT tunnel in Bangkok subsoil. ม.ป.ท.:Chulalongkorn University, 2009. Print.