एपीए उद्धरण

Gabi Duigu. (2009). Essay Writing For English Tests (third edition.). Tổng Hợp TPHCM.

शिकागो स्टाइल उद्धरण

Gabi Duigu. Essay Writing For English Tests. third edition. Tổng Hợp TPHCM, 2009.

एमएलए उद्धरण

Gabi Duigu. Essay Writing For English Tests. third edition. Tổng Hợp TPHCM, 2009.