Gaya APA

ampel, C, F, L, S, S, I, F, I, S, S. (1997). Step on english comprehension for elementary level . Surabaya: IAIN Surabaya.

Gaya MLA

ampel, Central, For, Language, Studies, State, Institute, For, Islamic, Studies, Sunan. "Step on english comprehension for elementary level". Surabaya: IAIN Surabaya, 1997. Text.