THANH, Trần Đức.
 Về phân loại bản đồ du lịch.
<strong>VNU Journal of Science: Natural Sciences and Technology</strong>, [S.l.], v. 10, n. 4, apr. 2017.
ISSN 2588-1140.
Available at: &lt;<a href="https://js.vnu.edu.vn/NST/article/view/4291" target="_new">https://js.vnu.edu.vn/NST/article/view/4291</a>&gt;. Date accessed: 28 dec. 2024.