Gaya APA

SLAMET, R. (2011). 12 Tenses To Master in a Day With Examples (Cet. 1.). Pustaka Pelajar: Pustaka Pelajar.

Gaya MLA

SLAMET, Riyanto. "12 Tenses To Master in a Day With Examples". Cet. 1. Pustaka Pelajar: Pustaka Pelajar, 2011. Text.