Black, James A., author
John Wiley & Sons, 1976
Buku Teks
edited by James F. Short
Sage, 1986
Buku Teks
Leftwich, Richard H., author
Business Publications, 1982
Buku Teks
edited by Richard Hugman, David Smith
Routledge, 1996
Buku Teks
edited by Helen Jones and Susane Macgregor
Routledge, 1998
Buku Teks