Vohra, N. D Qualitative techniques in management / N D Vohra - New Dehli, India : Tata McGraw-Hill, 2010. - xvi, 1063 pages : illustrations ; 24 cm ISBN: 9780070146730 Subjects--Topical Terms: Management --Mathematical models. Decision making --Mathematical models. Dewey Class. No.: 658.4033 / VOH