Gaya APA

Yufrizal, H. (2008). An Introduction To Second Language Acquisition (Cet. 1). Bandng: Pustaka Reka Cipta.

Gaya MLA

Yufrizal, Hery. "An Introduction To Second Language Acquisition". Cet. 1 Bandng: Pustaka Reka Cipta, 2008. Text.