Van Wart, Montgomery
Garland, 1998
Buku Teks
Fisher, C.M.
Routledge , 1998
Buku Teks
by Frank B. Feigert ... [et al.] ; edited by Don C. Piper and Ronald J. Terchek
American Enterprise Institute for Public Policy Research, 1983
Buku Teks
Thompson, Frank J.
Thomson - Wadsworth, 2003
Buku Teks
Indian Institute of Management, 1991
Buku Teks