Gaya APA

), T, T, Z, (, 6. (2013). Altruism in Charles dickens great expectation (2013). Surabaya: Universitas Widya Kartika.

Gaya MLA

), Thong, Timotius, Zefanya, (, 61410044. "Altruism in Charles dickens great expectation". 2013 Surabaya: Universitas Widya Kartika, 2013. Text.