[To Parent Directory] 3/25/2008 11:56 AM 4338380 PDF4280044_full.pdf 3/25/2008 11:54 AM 2365606 PDF4280044_s01.pdf 3/25/2008 11:53 AM 1961897 PDF4280044_s02.pdf 3/25/2008 12:00 PM 125728 PDF4280044_บทคัดย่อ.pdf