NGUYEN XUAN, Sang et al.
 Crystalline Structure, Optical Properties and Photocatalytic Activity of Cr3+-Doped ZnO Nanoparticles.
<strong>VNU Journal of Science: Natural Sciences and Technology</strong>, [S.l.], v. 34, n. 4, dec. 2018.
ISSN 2588-1140.
Available at: &lt;<a href="https://js.vnu.edu.vn/NST/article/view/4750" target="_new">https://js.vnu.edu.vn/NST/article/view/4750</a>&gt;. Date accessed: 20 apr. 2024.
doi: <a href="https://doi.org/10.25073/2588-1140/vnunst.4750">https://doi.org/10.25073/2588-1140/vnunst.4750</a>.