Gaya APA

Better english. (2003). Jakarta: [s.n.].

Gaya Chicago

Better english. Cet. 1. Jakarta: [s.n.], 2003. Text.

Gaya MLA

Better english. Cet. 1. Jakarta: [s.n.], 2003. Text.

Gaya Turabian

Better english. Jakarta: [s.n.], 2003. Print.