Sirinapa Phromkham. 1993. Pattern of speaking in Thai television dramas : a sociolinguistic analysis. Faculty of Graduate Studies, Mahidol University;
Sirinapa Phromkham. (1993) Pattern of speaking in Thai television dramas : a sociolinguistic analysis . Mahidol University/Bangkok.
Sirinapa Phromkham. Pattern of speaking in Thai television dramas : a sociolinguistic analysis. . Bangkok:Mahidol University, 1993.
Sirinapa Phromkham. (1993) Pattern of speaking in Thai television dramas : a sociolinguistic analysis . Mahidol University/Bangkok.