HA, Nguyen Thi Thu.
 Training students’ self-expression in English  through portfolio assessment: A trial in English literature.
<strong>VNU Journal of Foreign Studies</strong>, [S.l.], v. 26, n. 4, dec. 2010.
ISSN 2525-2445.
Available at: &lt;<a href="https://js.vnu.edu.vn/FS/article/view/2565" target="_new">https://js.vnu.edu.vn/FS/article/view/2565</a>&gt;. Date accessed: 22 dec. 2024.