Nguyen และผู้แต่งคนอื่นๆ. (2010) The effect of methadone maintenance treatment in improvement of quality of life for heroin users in Hai Phong city, Vietnam. Mahidol University:ม.ป.ท.Nguyen และผู้แต่งคนอื่นๆ. 2010. The effect of methadone maintenance treatment in improvement of quality of life for heroin users in Hai Phong city, Vietnam. ม.ป.ท.:Mahidol University;Nguyen และผู้แต่งคนอื่นๆ. The effect of methadone maintenance treatment in improvement of quality of life for heroin users in Hai Phong city, Vietnam. ม.ป.ท.:Mahidol University, 2010. Print.