Gaya APA
Souza, A, D., Setyanti, L.
(2007).
Proactive Visionary Leadership
.
Jakarta:
Trisewu Nagaswara.
Gaya MLA
Souza, Anthony, De., Setyanti, Lilis.
"Proactive Visionary Leadership".
Jakarta:
Trisewu Nagaswara,
2007.
Text.