Gaya APA
Suharsih, S. (2011).
Learning to Thank, to Apologize, and to Express Politeness Bilingual (Cet. I).
Jakarta Timur:
PT. Multazam Mulia Utama.
Gaya MLA
Suharsih, Siti.
"Learning to Thank, to Apologize, and to Express Politeness Bilingual".
Cet. I
Jakarta Timur:
PT. Multazam Mulia Utama,
2011.
Text.