Manurung, Reni, Hari Aspriyono, and Eko Prasetiyo. “Aplikasi Monitoring Gangguan Frekuensi Radio Berbasis Android Menggunakan Firebase Cloud Messaging (FCM)”. MEANS (Media Informasi Analisa dan Sistem) 7, no. 2 (December 21, 2022): 201–209. Accessed July 3, 2024. https://ejournal.ust.ac.id/index.php/Jurnal_Means/article/view/2291.