519.2
NAG

12539
12540
12541
12542
12543
12792
12793
12794
12795
12796
13152
13153
13154
13155

Nag,N.K. Quantitative methods : 1st semester WBUT / N.K.Nag. - Ludhiana : Kalyani Pubhlishers, 2009
538p. 978-81-272-4905-2 Rs.250.00 * MATHEMATICS :STATISTICS *