HAI HA, Vu.
 Using English to teach English:  Classroom English competence of English language teachers in Vietnam.
<strong>VNU Journal of Science: Education Research</strong>, [S.l.], v. 33, n. 4, dec. 2017.
ISSN 2588-1159.
Available at: &lt;<a href="https://js.vnu.edu.vn/ER/article/view/4115" target="_new">https://js.vnu.edu.vn/ER/article/view/4115</a>&gt;. Date accessed: 25 apr. 2024.
doi: <a href="https://doi.org/10.25073/2588-1159/vnuer.4115">https://doi.org/10.25073/2588-1159/vnuer.4115</a>.