HAI, Nguyen.
 Application of Geography Information Systems (GIS)  in Building Soil Degradation Map in Da River Basin Segments through Lai Chau, Dien Bien and Son La Provinces.
<strong>VNU Journal of Science: Earth and Environmental Sciences</strong>, [S.l.], v. 33, n. 1S, nov. 2017.
ISSN 2588-1094.
Available at: &lt;<a href="https://js.vnu.edu.vn/EES/article/view/4176" target="_new">https://js.vnu.edu.vn/EES/article/view/4176</a>&gt;. Date accessed: 22 nov. 2024.
doi: <a href="https://doi.org/10.25073/2588-1094/vnuees.4176">https://doi.org/10.25073/2588-1094/vnuees.4176</a>.