Justin L. Beray Impact of sin tax on price elasticity of tobacco products: a study on the buying behavior of BPO employees / Justin L. Beray, Celence M. Rocuyan, Esther Paulyne C. Uyan - Marikina City: OLOPSC, c2018 - 65 pages; 28 cm Subjects--Topical Terms: Tobacco productsEconomics. LC Class. No.: HB 233 B47 2018 / THE0000399