Panatchai Chetchotisak. (2011) Optimal Design and Sensitivity Analysis of Roof Truss. <i>KKU Engineering Journal</i>, <i>38</i>(1), 1-10.Panatchai Chetchotisak. "Optimal Design and Sensitivity Analysis of Roof Truss". KKU Engineering Journal 38 (2011):1-10.Panatchai Chetchotisak. Optimal Design and Sensitivity Analysis of Roof Truss. Faculty of Engineering, Khon Kaen Univeristy:ม.ป.ท. 2011.