Maz Mahzari and Mandar N. Panvelkar และ -. (2015) Innovative Design and Erection Solution for Portal Frame Industrial Steel Building Roofs. ISEC Press:ม.ป.ท.Maz Mahzari and Mandar N. Panvelkar และ -. 2015. Innovative Design and Erection Solution for Portal Frame Industrial Steel Building Roofs. ม.ป.ท.:ISEC Press;Maz Mahzari and Mandar N. Panvelkar และ -. Innovative Design and Erection Solution for Portal Frame Industrial Steel Building Roofs. ม.ป.ท.:ISEC Press, 2015. Print.