Gaya APA
Leadership in organizations. (1989).
New Jersey:
Prentice Hall Inc..
Gaya Chicago
Leadership in organizations.
2nd.
New Jersey:
Prentice Hall Inc.,
1989.
Buku.
Gaya MLA
Leadership in organizations.
2nd.
New Jersey:
Prentice Hall Inc.,
1989.
Buku.
Gaya Turabian
Leadership in organizations.
New Jersey:
Prentice Hall Inc.,
1989.
Buku.