Chongsin Sookoomjariyapong และ Sanguan Vongchavalitkul. (2012) Critical buckling moment of PFRP simple c-channel beam under the uncertainty of strength of materials. <i>KKU Engineering Journal</i>, <i>39</i>(4), 407-413.Chongsin Sookoomjariyapong และ Sanguan Vongchavalitkul. "Critical buckling moment of PFRP simple c-channel beam under the uncertainty of strength of materials". KKU Engineering Journal 39 (2012):407-413.Chongsin Sookoomjariyapong และ Sanguan Vongchavalitkul. Critical buckling moment of PFRP simple c-channel beam under the uncertainty of strength of materials. Faculty of Engineering, Khon Kaen Univeristy:ม.ป.ท. 2012.