Gaya APA

Purwono, Y, A., Ag, D, S, M. (2011). A Descriptive Analysis of English Register Used in Cellular Phone System Nokia Series 1112 . Salatiga: STAIN Salatiga.

Gaya MLA

Purwono, Yusuf, Arif., Ag, Dr., Saadi,, M.. "A Descriptive Analysis of English Register Used in Cellular Phone System Nokia Series 1112". Salatiga: STAIN Salatiga, 2011. Text.