Gaya APA
Souza, A, D., Setyayanti, L.
(2007).
Proactive visionary leadership
.
jakarta:
Trisewu nagawarsa.
Gaya MLA
Souza, Anthony, D., Setyayanti, Lilis.
"Proactive visionary leadership".
jakarta:
Trisewu nagawarsa,
2007.
Text.