Gaya APA

PURNOMO, B. (2013). Politeness in Tourism-Service Register in Central Java (A Sociopragmatic Study) . Yogyakarta: Deepublish.

Gaya MLA

PURNOMO, Budi. "Politeness in Tourism-Service Register in Central Java (A Sociopragmatic Study)". Yogyakarta: Deepublish, 2013. Text.