एपीए उद्धरण

Griffiths, M. (2012). Cambridge IELTS: Practice tests. TP. HCM: Tổng hợp.

शिकागो स्टाइल उद्धरण

Griffiths, Mark. Cambridge IELTS: Practice Tests. TP. HCM: Tổng hợp, 2012.

एमएलए उद्धरण

Griffiths, Mark. Cambridge IELTS: Practice Tests. TP. HCM: Tổng hợp, 2012.