Robbins, Stephen P., author
Pearson, 2010
Buku Teks
Robbins, Stephen P., author
Prentice-Hall, 1994
Buku Teks
Robbins, Stephen P., author
Prentice-Hall, 1988
Buku Teks
Kreitner, Robert, author
McGrw-Hill , 2001
Buku Teks
Robbins, Stephen P., author
Prentice-Hall, 1988
Buku Teks