Gaya APA

M.Pd, S., R. (2010). LET'S SPEAK ENGLISH ACTIVELY . Yogyakarta: Pustaka Pelajar.

Gaya MLA

M.Pd, Slamet, Riyanto,. "LET'S SPEAK ENGLISH ACTIVELY". Yogyakarta: Pustaka Pelajar, 2010. Buku Inti.