NHA, Vu Thi Thanh.
 Understanding validity and reliability from qualitative and quantitative research traditions.
<strong>VNU Journal of Foreign Studies</strong>, [S.l.], v. 37, n. 3, june 2021.
ISSN 2525-2445.
Available at: &lt;<a href="https://js.vnu.edu.vn/FS/article/view/4672" target="_new">https://js.vnu.edu.vn/FS/article/view/4672</a>&gt;. Date accessed: 25 apr. 2024.
doi: <a href="https://doi.org/10.25073/2525-2445/vnufs.4672">https://doi.org/10.25073/2525-2445/vnufs.4672</a>.