Nantaphunkul, J., P. Thavitchasri, and S. Bootchai. “Development of IoT-Based Air Quality Monitoring System”. Thailand Electrical Engineering Journal (TEEJ), vol. 5, no. 3, Nov. 2025, pp. 41-48, https://ph04.tci-thaijo.org/index.php/TEE_J/article/view/11299.