Gaya APA

John Gray, Ph. D.. (2001). Children are from heaven (3). : Gramedia Pustaka Utama.

Gaya Chicago

John Gray, Ph. D.. Children are from heaven. 3 : Gramedia Pustaka Utama, 2001. Text.

Gaya MLA

John Gray, Ph. D.. Children are from heaven. 3 : Gramedia Pustaka Utama, 2001. Text.

Gaya Turabian

John Gray, Ph. D.. Children are from heaven. 3 : Gramedia Pustaka Utama, 2001. Print.