Gaya APA

m.pd., D, E, A, S. (2000). The Art And Science Of Leadership (Edisi 2). New Jersey: Prentice Hall.

Gaya MLA

m.pd., Dr., Ervin, Azhar, S.si.,. "The Art And Science Of Leadership". Edisi 2 New Jersey: Prentice Hall, 2000. Text.