Gaya APA
Wirapradja, N, R, D.
(2008).
99 Ideas for Happy Leader
(
Ed. 1)
.
Bandung:
ZIP BOOKS.
Gaya MLA
Wirapradja, Nana, Rukmana, D..
"99 Ideas for Happy Leader".
Ed. 1
Bandung:
ZIP BOOKS,
2008.
Text.