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. DOI: 10.51519/journalita.volume3.isssue3.year2022.page370-381. Disponível em: https://journal-computing.org/index.php/journal-ita/article/view/330. Acesso em: 9 oct. 2025.