Naidu, N. V. R. Operations research: question bank/ N.V.R. Naidu, K.M. Babu and G. Rajendra. - New Delhi: I.K. International Publishing house Pvt. Ltd, 2007. - xi, 180 pages ISBN: (788189866426 Subjects--Topical Terms: Research methods LC Class. No.: QA 265 / .N3 2007