COOPER, D. R. (1999). Metode penelitian bisnis. Erlangga.
Chicago Style (17th ed.) CitationCOOPER, Donald R. Metode Penelitian Bisnis. Erlangga, 1999.
MLA (8th ed.) CitationCOOPER, Donald R. Metode Penelitian Bisnis. Erlangga, 1999.
Warning: These citations may not always be 100% accurate.