SƠN, Nguyễn Hồng.
 Thư ngỏ.
<strong>VNU JOURNAL OF ECONOMICS AND BUSINESS</strong>, [S.l.], v. 31, n. 4, dec. 2015.
ISSN 2734-9845.
Available at: &lt;<a href="https://js.vnu.edu.vn/EAB/article/view/51" target="_new">https://js.vnu.edu.vn/EAB/article/view/51</a>&gt;. Date accessed: 22 may 2024.