QUYNH, Nguyen Thi Ngoc.
 A STUDY ON THE VALIDITY OF VSTEP WRITING TESTS  FOR THE SAKE OF REGIONAL AND INTERNATIONAL INTEGRATION.
<strong>VNU Journal of Foreign Studies</strong>, [S.l.], v. 34, n. 4, aug. 2018.
ISSN 2525-2445.
Available at: &lt;<a href="https://js.vnu.edu.vn/FS/article/view/4285" target="_new">https://js.vnu.edu.vn/FS/article/view/4285</a>&gt;. Date accessed: 25 apr. 2024.
doi: <a href="https://doi.org/10.25073/2525-2445/vnufs.4285">https://doi.org/10.25073/2525-2445/vnufs.4285</a>.