VOH'P07 PG/2230 UG/6693 UG/6694 UG/6695 Vohra, N D Quantitative techniques in management / N D Vohra. – 3rd ed. – New Delhi : Tata McGraw-Hill Education , c2007 (9th reprint 2009). xvi, 1049p. : Table ISBN9780070611931 : ISBN0070611933 : . Operation research |