tongchai, thitiporn, Boontor, P., Kalyanamitra, S., Jaikwang, P., Wadsuntud, K., Chaiyakun, T. and Suetrong, C. (2026) “IoT-Based Air Quality Monitoring and Surveillance System”, SciTech Research Journal. Maha Sarakham, Thailand, 9(2), pp. 61–78. available at: https://ph02.tci-thaijo.org/index.php/jstrmu/article/view/264009 (accessed: 12 September 2026).