Wiwatchai Atthakor. (1991) Evaluations of the Thai government's labor-export policy and its implication. National Institute of Development Administration:ม.ป.ท.Wiwatchai Atthakor. 1991. Evaluations of the Thai government's labor-export policy and its implication. ม.ป.ท.:National Institute of Development Administration;Wiwatchai Atthakor. Evaluations of the Thai government's labor-export policy and its implication. ม.ป.ท.:National Institute of Development Administration, 1991. Print.