GUPTA S K, . (1989). LINEAR PROGRAMMING & NETWORK MODEL. : AFFILIATED EAST WEST PRESS PVT LTD.
GUPTA S K, . 1989. LINEAR PROGRAMMING & NETWORK MODEL. : AFFILIATED EAST WEST PRESS PVT LTD.
GUPTA S K, . LINEAR PROGRAMMING & NETWORK MODEL. : AFFILIATED EAST WEST PRESS PVT LTD. 1989.