Gaya APA

Hakim, L., Azzahrah, F. (2014). Before It's Too Late (Cetakan I, 2014). Yogyakarta: Media Pressindo.

Gaya MLA

Hakim, Luqman., Azzahrah, Fatimah. "Before It's Too Late". Cetakan I, 2014 Yogyakarta: Media Pressindo, 2014. Text.