Gaya APA

m.pd, D, I, R, E. (2007 ). The Practice of English Language Teaching 4th Edition . [s.i.]: Pearson.

Gaya MLA

m.pd, Dr., Imas, Ratna, Ermawat,. "The Practice of English Language Teaching 4th Edition". [s.i.]: Pearson, 2007 . Text.