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