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NEGI L.S, . (1999). DESIGN OF STEEL STRUCTURES 2ND ED. : TATA MCGRAW-HILL NEW DELHI.
NEGI L.S, . 1999. DESIGN OF STEEL STRUCTURES 2ND ED. : TATA MCGRAW-HILL NEW DELHI.
NEGI L.S, . DESIGN OF STEEL STRUCTURES 2ND ED. : TATA MCGRAW-HILL NEW DELHI. 1999.