Rama Dwiyantara Perkasa, and Oscar Hadikaryana. “Implementasi Cnn Dan Haversine Formula Pada Pengembangan Sistem Absensi Karyawan Berbasis IOS”. JuSTISe: Journal Data Science, Technology, Informatics and Security 1, no. 2 (December 31, 2023). Accessed June 1, 2026. https://e-journal.ukri.ac.id/justise/article/view/3375.