PUTRO, D. P.; GUNAWAN, I.; SURYANI, P. E. Software Push Notification Disposisi Persuratan Berbasis Website Menggunakan Firebase Cloud Messaging. Journal of Information Technology Ampera, [S. l.], v. 3, n. 3, p. 370–381, 2022. Disponível em: https://journal-computing.org/index.php/journal-ita/article/view/330. Acesso em: 30 aug. 2026.