LIEN, Vu Phuong.
 Assessing Collaborative Problem Solving Competency through Integrated Natural Science Teaching of the Topic “Nonmetals” in Chemistry 11.
<strong>VNU Journal of Science: Education Research</strong>, [S.l.], v. 34, n. 3, sep. 2018.
ISSN 2588-1159.
Available at: &lt;<a href="https://js.vnu.edu.vn/ER/article/view/4160" target="_new">https://js.vnu.edu.vn/ER/article/view/4160</a>&gt;. Date accessed: 27 apr. 2024.
doi: <a href="https://doi.org/10.25073/2588-1159/vnuer.4160">https://doi.org/10.25073/2588-1159/vnuer.4160</a>.