Griffiths, M. (2012). Cambridge IELTS: Practice tests. TP. HCM: Tổng hợp.
Chicago Style CitationGriffiths, Mark. Cambridge IELTS: Practice Tests. TP. HCM: Tổng hợp, 2012.
MLA CitationGriffiths, Mark. Cambridge IELTS: Practice Tests. TP. HCM: Tổng hợp, 2012.
Warning: These citations may not always be 100% accurate.