Pakpoom sridichainanta และ Martin Goerlich. (2017) Personal professional Development plan. Stamford International University:ม.ป.ท.Pakpoom sridichainanta และ Martin Goerlich. 2017. Personal professional Development plan. ม.ป.ท.:Stamford International University;Pakpoom sridichainanta และ Martin Goerlich. Personal professional Development plan. ม.ป.ท.:Stamford International University, 2017. Print.