Office, I. L. (1976). Penelitian dan pengukuran kerja. Erlangga.
Chicago Style (17th ed.) CitationOffice, International Labour. Penelitian Dan Pengukuran Kerja. Erlangga, 1976.
MLA (8th ed.) CitationOffice, International Labour. Penelitian Dan Pengukuran Kerja. Erlangga, 1976.
Warning: These citations may not always be 100% accurate.