Lamb, Marion M
South-Western Publishing, , 1961
Buku Teks
Conviser, Richard J., author
HBJ, 1990
Buku Teks
Tong, Keith S. T., author
Routledge, 1994
Buku Teks
Nicol, Malcolm F., author
Holden-Day, 1973
Buku Teks
Harum Kusuma Apriyanti, author
Griffith Business School at Griffith University Australia. Employment Relations Human Resources Department, 2016
Artikel Jurnal