Gaya APA

Indriani, D, M. (2001). English Pronunciation The English Speech Sounds Theory & Practice (Cet. 1). Jakarta: PT Gramedia Pustaka Utama.

Gaya MLA

Indriani, Dra., M.I.. "English Pronunciation The English Speech Sounds Theory & Practice". Cet. 1 Jakarta: PT Gramedia Pustaka Utama, 2001. Text.