Natchaya Chalaysap. (1993) Tactics in detecting word meanings. National Institute of Development Administration,:ม.ป.ท.Natchaya Chalaysap. 1993. Tactics in detecting word meanings. ม.ป.ท.:National Institute of Development Administration,;Natchaya Chalaysap. Tactics in detecting word meanings. ม.ป.ท.:National Institute of Development Administration, 1993. Print.