Punthit Unhasut. 2002. Development of customer support system via intranet environment case study in Customer Support Department, Edi Siam Corp. Ltd. Field of Study Technology of Information System Management, Mahidol University;
Punthit Unhasut. (2002) Development of customer support system via intranet environment case study in Customer Support Department, Edi Siam Corp. Ltd. . Mahidol University/Bangkok.
Punthit Unhasut. Development of customer support system via intranet environment case study in Customer Support Department, Edi Siam Corp. Ltd. . Bangkok:Mahidol University, 2002.
Punthit Unhasut. (2002) Development of customer support system via intranet environment case study in Customer Support Department, Edi Siam Corp. Ltd. . Mahidol University/Bangkok.