Sirinapa Phromkham. (1993) Pattern of speaking in Thai television dramas : a sociolinguistic analysis. Mahidol University,:ม.ป.ท.Sirinapa Phromkham. 1993. Pattern of speaking in Thai television dramas : a sociolinguistic analysis. ม.ป.ท.:Mahidol University,;Sirinapa Phromkham. Pattern of speaking in Thai television dramas : a sociolinguistic analysis. ม.ป.ท.:Mahidol University, 1993. Print.