Gaya APA
O'toole, J.
(2003).
Leadership A to Z (A guide For The appropriately a Ambitious)
.
Jakarata:
Erlangga.
Gaya MLA
O'toole, James.
"Leadership A to Z (A guide For The appropriately a Ambitious)".
Jakarata:
Erlangga,
2003.
Text.