Erwanto, Ricky Hastomo, and Muhammad Arrofiq. “A Performance Comparison of XBEE S2 Module and ESP8266 (12E) Module on Air Quality Monitoring System”. Journal of Internet and Software Engineering 1, no. 1 (December 19, 2020): 5. Accessed May 5, 2024. https://jurnal.ugm.ac.id/v3/JISE/article/view/656.