THI QUYNH LAN, Mai.
 Methodology of Ranking Higher Education Systems  of Universitas 21 (U21) and Lessons  for South East Asia Countries.
<strong>VNU Journal of Science: Education Research</strong>, [S.l.], v. 37, n. 2, june 2021.
ISSN 2588-1159.
Available at: &lt;<a href="https://js.vnu.edu.vn/ER/article/view/4501" target="_new">https://js.vnu.edu.vn/ER/article/view/4501</a>&gt;. Date accessed: 23 dec. 2024.
doi: <a href="https://doi.org/10.25073/2588-1159/vnuer.4501">https://doi.org/10.25073/2588-1159/vnuer.4501</a>.