Gaya APA

Jendra, M, I, I. (2012). Sociolinguistics: the study of societies languages . Yogyakarta: Graha Ilmu.

Gaya MLA

Jendra, Made, Iwan, Indrawan. "Sociolinguistics: the study of societies languages". Yogyakarta: Graha Ilmu, 2012. Text.