In particular, the study focused on the English consonant pronunciation problems on
nd
letter P and B sound in the 2 year English for International Communication students at
Rajamangala University of Technology Isan, Surin Campus. Scores in each test showed that
the majority of respondents have English consonant pronunciation on letter /b/ sound
84(56%) and the minority of respondents have English consonant pronunciation on letter /p/
sound 42(28%).