Wantida Ittitanun. (2007) Factors affecting substance abuse among the Royal Thai Air Force airmen at Donmuang air force base. Mahidol University,:ม.ป.ท.Wantida Ittitanun. 2007. Factors affecting substance abuse among the Royal Thai Air Force airmen at Donmuang air force base. ม.ป.ท.:Mahidol University,;Wantida Ittitanun. Factors affecting substance abuse among the Royal Thai Air Force airmen at Donmuang air force base. ม.ป.ท.:Mahidol University, 2007. Print.