Griffani Megiyanto Rahmatullah, Andry Haidar, I. Wulani, Aldiyans Nurcahyo, and Ajeng Denita Khoerunnisa, “ Integrated Application System for Reporting Emergency Situations on Toll Roads Based on NodeMCU”, JT, vol. 20, no. 2, pp. 114–124, Dec. 2021.