Gaya APA

Hughes, R, H. (2002). Leadership: Enchanging The Lesson Of Experience (Fourth Edition) (Ed.4). New York: Mc Grraw-Hill Book Co..

Gaya MLA

Hughes, Richard, H.. "Leadership: Enchanging The Lesson Of Experience (Fourth Edition)". Ed.4 New York: Mc Grraw-Hill Book Co., 2002. Hibah Buku Dra. Anita Lestari,.