Cooper, D. R. (2011). Metode Riset Bisnis 1 (e9). Salemba.
Chicago Style (17th ed.) CitationCooper, Donald R. Metode Riset Bisnis 1 (e9). Salemba, 2011.
MLA (8th ed.) CitationCooper, Donald R. Metode Riset Bisnis 1 (e9). Salemba, 2011.
Warning: These citations may not always be 100% accurate.