[To Parent Directory] 3/27/2008 1:58 PM 2697223 PDF4480071_full.pdf 3/27/2008 1:57 PM 1129727 PDF4480071_s01.pdf 3/27/2008 1:58 PM 1546854 PDF4480071_s02.pdf 2/13/2007 7:15 AM 601022 PDF4480071_บทคัดย่อ.pdf