An, T., Long, L., Nhi, V., Thien, V., Hanh, P., Thanh Hai, N., & Minh, N. (2025). Design of an iot check-in system controlling the ministry of health’s 5k regulation. VNUHCM Journal of Engineering and Technology, 8(2), 2565-2572. https://doi.org/https://doi.org/10.32508/stdjet.v6iSI2.1115