Trần, N. L. N., & Lê Thị Thu Huyền. (2015). An investigation into hedging devices in academic writing of vietnamese third-year university students at the university of da nang – university of foreign language studies. ĐHĐN: ĐHĐN.

Trần, Nữ Ly Na, و Lê Thị Thu Huyền. An Investigation Into Hedging Devices in Academic Writing of Vietnamese Third-year University Students At the University of Da Nang €� University of Foreign Language Studies. ĐHĐN: ĐHĐN, 2015.

Trần, Nữ Ly Na, و Lê Thị Thu Huyền. An Investigation Into Hedging Devices in Academic Writing of Vietnamese Third-year University Students At the University of Da Nang €� University of Foreign Language Studies. ĐHĐN: ĐHĐN, 2015.