Cooper, D. R. (1998). Metode Penelitian Jilid 2. Erlangga.
Chicago Style (17th ed.) CitationCooper, Donald R. Metode Penelitian Jilid 2. Erlangga, 1998.
MLA (8th ed.) CitationCooper, Donald R. Metode Penelitian Jilid 2. Erlangga, 1998.
Warning: These citations may not always be 100% accurate.