APA citiranje

Nguyễn Đức An Vi. (2002). Advantages and disadvantages of the current speaking materials used for the fist and second year students.

Trích dẫn kiểu Chicago

Nguyễn Đức An Vi. Advantages and Disadvantages of the Current Speaking Materials Used for the Fist and Second Year Students. 2002.

MLA citiranje

Nguyễn Đức An Vi. Advantages and Disadvantages of the Current Speaking Materials Used for the Fist and Second Year Students. 2002.