Gaya APA
Leadersip Followership. (2002).
Jakarta:
Penerbit PPM.
Gaya Chicago
Leadersip Followership.
.
Jakarta:
Penerbit PPM,
2002.
Text.
Gaya MLA
Leadersip Followership.
.
Jakarta:
Penerbit PPM,
2002.
Text.
Gaya Turabian
Leadersip Followership.
Jakarta:
Penerbit PPM,
2002.
Print.