Wiroj Atipornwanich และ Trakool Aramraks. (2011) Development length of multiple five-strand tendons in post-tensioned slabs. Kasetsart University:ม.ป.ท.Wiroj Atipornwanich และ Trakool Aramraks. 2011. Development length of multiple five-strand tendons in post-tensioned slabs. ม.ป.ท.:Kasetsart University;Wiroj Atipornwanich และ Trakool Aramraks. Development length of multiple five-strand tendons in post-tensioned slabs. ม.ป.ท.:Kasetsart University, 2011. Print.