Gaya APA

Nasution, A., Padmadjati, J. (2011). Cool, Calm, Confident . Jakarta: PT Gramedia Pustaka Utama.

Gaya MLA

Nasution, Akhiz., Padmadjati, Julietta. "Cool, Calm, Confident". Jakarta: PT Gramedia Pustaka Utama, 2011. Book.