APA citiranje

James Jennifer,PH.D. (1999). Twenty Steps To Wisdom. Jakarta: PT.Gramedia Pustaka Utama.

Chicago Style Citation

James Jennifer,PH.D. Twenty Steps To Wisdom. Jakarta: PT.Gramedia Pustaka Utama, 1999.

MLA citiranje

James Jennifer,PH.D. Twenty Steps To Wisdom. Jakarta: PT.Gramedia Pustaka Utama, 1999.

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