©2013 National Research Council of Thailand
Issaree Ongsuragz. 2008. A study of the pronunciation of /∑/ and /t∑/ by third year students of business administration major computer at Rajamangala University of Technology Phra Nakorn. , Thammasat University;
Issaree Ongsuragz. (2008) A study of the pronunciation of /∑/ and /t∑/ by third year students of business administration major computer at Rajamangala University of Technology Phra Nakorn . Thammasat University/Bangkok.
Issaree Ongsuragz. A study of the pronunciation of /∑/ and /t∑/ by third year students of business administration major computer at Rajamangala University of Technology Phra Nakorn. . Bangkok:Thammasat University, 2008.
Issaree Ongsuragz. (2008) A study of the pronunciation of /∑/ and /t∑/ by third year students of business administration major computer at Rajamangala University of Technology Phra Nakorn . Thammasat University/Bangkok.