Surasak Laohapiboolkul และผู้แต่งคนอื่นๆ. (2006) An evaluation of secondary school anti-narcotic programs in Bangkok metropolis. National Institute of Development Administration:ม.ป.ท.Surasak Laohapiboolkul และผู้แต่งคนอื่นๆ. 2006. An evaluation of secondary school anti-narcotic programs in Bangkok metropolis. ม.ป.ท.:National Institute of Development Administration;Surasak Laohapiboolkul และผู้แต่งคนอื่นๆ. An evaluation of secondary school anti-narcotic programs in Bangkok metropolis. ม.ป.ท.:National Institute of Development Administration, 2006. Print.