Yordani, M. F., and A. Sudaryanto. “Pengujian Sistem Monitoring Listrik Berbasis NodeMCU Menggunakan Blackbox Testing”. Informatics, Electrical and Electronics Engineering (Infotron), vol. 1, no. 2, Sept. 2021, pp. 50-55, doi:10.33474/infotron.v1i2.11331.