NEGI L.S, . (2005). DESIGN OF STEEL STRUCTURES 2ND. : TATA MCGRAW HILL PUB.
NEGI L.S, . 2005. DESIGN OF STEEL STRUCTURES 2ND. : TATA MCGRAW HILL PUB.
NEGI L.S, . DESIGN OF STEEL STRUCTURES 2ND. : TATA MCGRAW HILL PUB. 2005.