HUE, Hoang Thi.
 People’s Willingness to Pay to Improve Clean Water Service in Dong Trieu Commune, Quang Ninh Province.
<strong>VNU Journal of Science: Earth and Environmental Sciences</strong>, [S.l.], v. 34, n. 3, sep. 2018.
ISSN 2588-1094.
Available at: &lt;<a href="https://js.vnu.edu.vn/EES/article/view/4285" target="_new">https://js.vnu.edu.vn/EES/article/view/4285</a>&gt;. Date accessed: 24 nov. 2024.
doi: <a href="https://doi.org/10.25073/2588-1094/vnuees.4285">https://doi.org/10.25073/2588-1094/vnuees.4285</a>.