COOPER D R. (2001). BUSINESS RESEARCH METHODS (6TH.). TATA MCGRAW-HILL PUBLISHING COMPANY.
Chicagoスタイル(17版)引用形式COOPER D R. BUSINESS RESEARCH METHODS. 6TH. NEW DELHI: TATA MCGRAW-HILL PUBLISHING COMPANY, 2001.
MLA(9版)引用形式COOPER D R. BUSINESS RESEARCH METHODS. 6TH. TATA MCGRAW-HILL PUBLISHING COMPANY, 2001.
警告: この引用は必ずしも正確ではありません.