Robbins, Stephen P., author
Prentice-Hall, 1997
Buku Teks
Hitt, Michael A., author
Pearson, 2009
Buku Teks
Hicks, Herbert G., author
McGraw-Hill, 1981
Buku Teks
Robbins, Stephen P., author
Prentice-Hall, 1999
Buku Teks
Robbins, Stephen P., author
Pearson Education International, 2005
Buku Teks