APA استشهاد

Lê, H. P., & Dương, T. N. (2017). An investigation into the use of useful expressions to enhance speaking skills for the third-year students at hanoi university of business and technology.

استشهاد بنمط شيكاغو

Lê, Hồng Phượng, و Thị Nụ Dương. An Investigation Into the Use of Useful Expressions to Enhance Speaking Skills for the Third-year Students At Hanoi University of Business and Technology. 2017.

MLA استشهاد

Lê, Hồng Phượng, و Thị Nụ Dương. An Investigation Into the Use of Useful Expressions to Enhance Speaking Skills for the Third-year Students At Hanoi University of Business and Technology. 2017.

تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.