Peemasak Angchun. 2011. Factors related to the selection of information sources: a study of Ramkhamhaeng University regional campuses graduate students. , University of North Texas;
Peemasak Angchun. (2011) Factors related to the selection of information sources: a study of Ramkhamhaeng University regional campuses graduate students . University of North Texas/USA.
Peemasak Angchun. Factors related to the selection of information sources: a study of Ramkhamhaeng University regional campuses graduate students. . USA:University of North Texas, 2011.
Peemasak Angchun. (2011) Factors related to the selection of information sources: a study of Ramkhamhaeng University regional campuses graduate students . University of North Texas/USA.