WHITTEN JEFFERY.L, BENTLEY LNNIE.D, . (2002). SYSTEM ANALYSIS AND DESIGN METHODS. NEW DELHI: TATA MCGRAW HILL PUB.
WHITTEN JEFFERY.L, BENTLEY LNNIE.D, . 2002. SYSTEM ANALYSIS AND DESIGN METHODS. NEW DELHI: TATA MCGRAW HILL PUB.
WHITTEN JEFFERY.L, BENTLEY LNNIE.D, . SYSTEM ANALYSIS AND DESIGN METHODS. NEW DELHI: TATA MCGRAW HILL PUB. 2002.