Cooper, D. R. (1999). Metode Penelitian Bisnis - Jilid 1. Erlangga.
Chicago Style (17th ed.) CitationCooper, Donald R. Metode Penelitian Bisnis - Jilid 1. Erlangga, 1999.
MLA (8th ed.) CitationCooper, Donald R. Metode Penelitian Bisnis - Jilid 1. Erlangga, 1999.
Warning: These citations may not always be 100% accurate.