Gaya APA

Pringgawidagda, S., Harmer, J. (1998). How To Teach English: An Introduction To The Practice Of English Language Teaching . London: Longman.

Gaya MLA

Pringgawidagda, Suwarna., Harmer, Jeremy. "How To Teach English: An Introduction To The Practice Of English Language Teaching". London: Longman, 1998. Text.