TAN, Mai Thanh et al.
 Paleokarst in Phong Nha - Ke Bang - Hin Nam No  and its Geomorphological and Geological Values.
<strong>VNU Journal of Science: Earth and Environmental Sciences</strong>, [S.l.], v. 40, n. 3, aug. 2024.
ISSN 2588-1094.
Available at: &lt;<a href="https://js.vnu.edu.vn/EES/article/view/5065" target="_new">https://js.vnu.edu.vn/EES/article/view/5065</a>&gt;. Date accessed: 04 dec. 2024.
doi: <a href="https://doi.org/10.25073/2588-1094/vnuees.5065">https://doi.org/10.25073/2588-1094/vnuees.5065</a>.