TIEP, Pham Quang.
 Building a STEAM Educational Environment for Preschoolers Based on Natural Materials.
<strong>VNU Journal of Science: Education Research</strong>, [S.l.], dec. 2025.
ISSN 2588-1159.
Available at: &lt;<a href="https://js.vnu.edu.vn/ER/article/view/5298" target="_new">https://js.vnu.edu.vn/ER/article/view/5298</a>&gt;. Date accessed: 12 jan. 2026.
doi: <a href="https://doi.org/10.25073/2588-1159/vnuer.5298">https://doi.org/10.25073/2588-1159/vnuer.5298</a>.