Gaya APA
Toler, A, N, S.
(2002).
The 5 Secrets To Becoming A Leader
.
Yogyakarta:
Gloria Graffa.
Gaya MLA
Toler, Alan, Nelson, Stan.
"The 5 Secrets To Becoming A Leader".
Yogyakarta:
Gloria Graffa,
2002.
Text.