APA Style

Maxwell, John C.. (2004). 21 Hukum Kepemimpinan Sejati : The 21 Irredutable Laws of Leadership . : Interaksara.

Chicago Style

Maxwell, John C.. 21 Hukum Kepemimpinan Sejati : The 21 Irredutable Laws of Leadership. : Interaksara, 2004. Text.

MLA Style

Maxwell, John C.. 21 Hukum Kepemimpinan Sejati : The 21 Irredutable Laws of Leadership. : Interaksara, 2004. Text.

Turabian Style

Maxwell, John C.. 21 Hukum Kepemimpinan Sejati : The 21 Irredutable Laws of Leadership. : Interaksara, 2004. Print.