edited by James F. Short
Sage, 1986
Buku Teks
Leftwich, Richard H.
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
edited by Lawrence S. Wringtsman
Wadsworth, 1968
Buku Teks