Eiteman, David K., author
Erlangga, 2010
Buku Teks
Levi, Maurice D., 1945-, author
McGraw-Hill, 1990
Buku Teks
Sihler, William W., author
[American Management Association, ], 2004
eBooks
Block, Stanley B., author
Canfield Press, 1973
Buku Teks
Eiteman, David K., author
Mas Addison-Wesley , 1986
Buku Teks