00000nam a2200000 a 4500 20251203090736.0 0074516582 330.0151 GUP Gupta,J.D. Mathematics for business and economics New Delhi Tata McGraw Hill 1987 x, 543p. 22cm. PB Economics Set relations Differentation Trignometry Linear programming Gupta,P.K. Mohan,Man ENGLISH _ 27586 W 18397 18397 2 0 0 0 PU PU 1999-01-08 0 330.0151 GUP 27586 BK