Gaya APA

Suharsih, S. (2010). LEARNING to thank, tp Apologize, and to Express Politeness (cet1). jakarta timur: PT. MULTAZAM MULIA UTAMA.

Gaya MLA

Suharsih, Siti. "LEARNING to thank, tp Apologize, and to Express Politeness". cet1 jakarta timur: PT. MULTAZAM MULIA UTAMA, 2010. Text.