1.College Mathematics for business, Economics, Life Sciences and Social SciencesISBN: 9780321614001Publisher: Pearson Prentice HallEdition: 12Authors: Barnett, Raymond A; Ziegler Michael R, etcYear: 2011 $90 2.Introductions to EconometricsISBN:9780321442536Publisher: Pearson Addison WesleyEdition: 2Authors: Stock & WatsonYear: 2007 $50 IF YOU BUY TWO TEXTBOOKS TOGETHER, I OFFER PRICE AT $120!!! CONTACT NO: 0430331232 (Gareth) 可收中文信息