Wantanee Poomcharoen. (1992) An experimental study of the effectiveness on the use of printed text as a learner support strategy in the teaching of listening comprehension. Mahidol University,:ม.ป.ท.Wantanee Poomcharoen. 1992. An experimental study of the effectiveness on the use of printed text as a learner support strategy in the teaching of listening comprehension. ม.ป.ท.:Mahidol University,;Wantanee Poomcharoen. An experimental study of the effectiveness on the use of printed text as a learner support strategy in the teaching of listening comprehension. ม.ป.ท.:Mahidol University, 1992. Print.