Gaya APA

LITTLEJOHN, A. (2012). WRITING 1 : STUDENT'S BOOK . NEW YORK: CAMBRIDGE UNIVERSITY PRESS.

Gaya MLA

LITTLEJOHN, ANDREW. "WRITING 1 : STUDENT'S BOOK". NEW YORK: CAMBRIDGE UNIVERSITY PRESS, 2012. Prodi S1 Sastra Inggris.