ANH, Le Van; 						TUNG, Ngo Sy.
 Some results on countably ∑-uniform - extending modules.
<strong>VNU Journal of Science: Mathematics - Physics</strong>, [S.l.], v. 25, n. 1, mar. 2009.
ISSN 2588-1124.
Available at: &lt;<a href="https://js.vnu.edu.vn/MaP/article/view/2581" target="_new">https://js.vnu.edu.vn/MaP/article/view/2581</a>&gt;. Date accessed: 19 may 2024.