Elkin, Arthur
Buku Teks
Robbins, Stephen P., author
Pearson Education International, 2005
Buku Teks
Robbins, Stephen P., author
Prentice-Hall, 2002
Buku Teks
Robbins, Stephen P., author
Prentice Hall International, 2002
Buku Teks
Hodgetts, Richard M., author
Harcourt Brace Jovanovanovich, 1988
Buku Teks