E. Puspita, N. L. Azizah, C. Taurusta, and Y. Rahmawati, “Integrated Population Administration System With Automated WhatsApp Notifications: Sistem Administrasi Kependudukan Terpadu dengan Notifikasi WhatsApp Otomatis”, acopen, vol. 10, no. 2, p. 10.21070/acopen.10.2025.13404, Dec. 2025.