एपीए उद्धरण

Nguyễn Thị Thu Trang. (2004). How to improve speaking skill of English learners at foreign languages centers in Da Nang city. Khoa Anh Ngữ.

शिकागो स्टाइल उद्धरण

Nguyễn Thị Thu Trang. How to Improve Speaking Skill of English Learners At Foreign Languages Centers in Da Nang City. Khoa Anh Ngữ, 2004.

एमएलए उद्धरण

Nguyễn Thị Thu Trang. How to Improve Speaking Skill of English Learners At Foreign Languages Centers in Da Nang City. Khoa Anh Ngữ, 2004.