Gaya APA

Sonnes, S., Simamora, M. (2011). What My Girlfriend Doesn't Know (cet 1). Jakarta: Gramedia Pustaka Utama.

Gaya MLA

Sonnes, Sonya., Simamora, Meliana. "What My Girlfriend Doesn't Know". cet 1 Jakarta: Gramedia Pustaka Utama, 2011. Text.