Niramol Chanyam. 2002. A study of language attitude toward Thai dialects and their speakers : a case study of four campuses of Rajamangala Institute of Technology. Field of Study Linguistics, Mahidol University;
Niramol Chanyam. (2002) A study of language attitude toward Thai dialects and their speakers : a case study of four campuses of Rajamangala Institute of Technology . Mahidol University/Bangkok.
Niramol Chanyam. A study of language attitude toward Thai dialects and their speakers : a case study of four campuses of Rajamangala Institute of Technology. . Bangkok:Mahidol University, 2002.
Niramol Chanyam. (2002) A study of language attitude toward Thai dialects and their speakers : a case study of four campuses of Rajamangala Institute of Technology . Mahidol University/Bangkok.