Cooper, Donald R. Business Research Methods / Donald R. Cooper - 7th ed - New York : McGraw-Hill, 2001 - 798 p : ill CD-ROM (ยืม-คืน/ชั้น1) ISBN: 0071181091 / 788 Subjects--Topical Terms: Industrial management--Research. LC Class. No.: HD30.4 / C776 B8 2001