Inkham, K., Nantakhwang, P. and Khaengraeng, S. (2023) “UVGI Air Sterilizer in Air-conditioners”, Institute of Vocational Education Southern Region 3 Journal (KRIS Journal). Songkhla, Thailand, 3(1), pp. 49–58. available at: https://so08.tci-thaijo.org/index.php/KRIS/article/view/3256 (accessed: 9 April 2025).