Gaya APA

Astuti, I, Y. (2009). Lets Study Adverbs (Ed. 1, cet.1). Bandung: Pakar Raya.

Gaya MLA

Astuti, Indri, Yuli. "Lets Study Adverbs". Ed. 1, cet.1 Bandung: Pakar Raya, 2009. .