Poochaya, S., and D. Widjaja. “ENHANCING VACCINE REFRIGERATOR TEMPERATURE REPORTING SYSTEM USING IOT TECHNOLOGY”. Suranaree Journal of Science and Technology, vol. 25, no. 3, Aug. 2026, pp. 225-34, https://ph04.tci-thaijo.org/index.php/SUJST/article/view/14497.