Kongsuk, S., Nongnual, P., Niyomtong, N., Thongnophakun, W. and Chuyong, S. (2023) “Development of Medical Face Mask Service Kiosk with Warning Light System”, Institute of Vocational Education Southern Region 3 Journal (KRIS Journal). Songkhla, Thailand, 3(1), pp. 91–102. available at: https://so08.tci-thaijo.org/index.php/KRIS/article/view/3260 (accessed: 3 October 2026).