Gaya APA

.Pd., D, ., S, R, ,, M. (2011). 12 TENSES TO MASTER in A Day . : Pustaka Pelajar.

Gaya MLA

.Pd., Drs, ., Slamet, Riyanto, ,, M. "12 TENSES TO MASTER in A Day". : Pustaka Pelajar, 2011. Text.