Umali, Pepe San Miguel-, Logic : the art of living with reason / Pepe San Miguel Umali - Manila : Mindshapers Co., 2007. - x, 214 pages : 22 cm. Includes Bibliography (pages 213-214). ISBN: 9789710445127 Subjects--Topical Terms: Logic.Proposition (Logic).Reasoning. Dewey Class. No.: 160 / Um1l