Wetik, J. (1975). Penelitian kerja dan penelitian metode. Erlangga.
Chicago Style (17th ed.) CitationWetik, J.L. Penelitian Kerja Dan Penelitian Metode. Erlangga, 1975.
MLA (8th ed.) CitationWetik, J.L. Penelitian Kerja Dan Penelitian Metode. Erlangga, 1975.
Warning: These citations may not always be 100% accurate.