Ampika Rattanapitak และ Sujaritlak Deepadung. (2012) Request and politeness strategies in burmese. Mahidol University:ม.ป.ท.Ampika Rattanapitak และ Sujaritlak Deepadung. 2012. Request and politeness strategies in burmese. ม.ป.ท.:Mahidol University;Ampika Rattanapitak และ Sujaritlak Deepadung. Request and politeness strategies in burmese. ม.ป.ท.:Mahidol University, 2012. Print.