Phan, Hong Phuoc, Manh Hung Chu, and Van Duy Nguyen. “NO₂ Gas Sensing Characteristics of SnO₂ Nanofiber-Based Sensors”.
Old Journal
, no. 142A (June 15, 2020): 23–27. Accessed August 2, 2025. https://jst.vn/index.php/old/article/view/535.