Surawit Jongyingsiri และ Trakool aramraks. (2006) Behavior of built-up precast concrete slab reinforced by external bars in Parabola curve /. Kasetsart University,:ม.ป.ท.Surawit Jongyingsiri และ Trakool aramraks. 2006. Behavior of built-up precast concrete slab reinforced by external bars in Parabola curve /. ม.ป.ท.:Kasetsart University,;Surawit Jongyingsiri และ Trakool aramraks. Behavior of built-up precast concrete slab reinforced by external bars in Parabola curve /. ม.ป.ท.:Kasetsart University, 2006. Print.