Gaya APA

O\'toole, J., Natalina, N. (2003). Leadership A to Z : a guide for the appropriately ambitious : panduan berambiisi secara positif . Jakarta: Erlangga.

Gaya MLA

O\'toole, James., Natalina, Neneng. "Leadership A to Z : a guide for the appropriately ambitious : panduan berambiisi secara positif". Jakarta: Erlangga, 2003. Text.