[To Parent Directory] 3/23/2008 2:48 PM 636233 PDF4280017_full.pdf 3/23/2008 2:47 PM 300382 PDF4280017_s01.pdf 3/23/2008 2:48 PM 331313 PDF4280017_s02.pdf 2/1/2007 12:59 PM 997967 PDF4280017_บทคัดย่อ.pdf