Siwaporn Chotecheun. (1986) The phonology of Nan with comparisons to Phare. Mahidol University,:ม.ป.ท.Siwaporn Chotecheun. 1986. The phonology of Nan with comparisons to Phare. ม.ป.ท.:Mahidol University,;Siwaporn Chotecheun. The phonology of Nan with comparisons to Phare. ม.ป.ท.:Mahidol University, 1986. Print.