“Rancang Bangun Sistem Monitoring Kulkas Ecogreen Secara IoT Berbasis Mikrokontroler ESP32”. Jurnal Litek : Jurnal Listrik Telekomunikasi Elektronika, vol. 22, no. 2, Oct. 2025, pp. 149-56, https://doi.org/10.30811/litek.v22i2.77.