Janah, Isma, 		Yusuf, Dani, 		Setiawati, Siti, AND 		Lubis, Hendarman.
" PERANCANGAN SISTEM PRESENSI BERBASIS WEB MENGGUNAKAN ALGORITMA HAVERSINE PADA PT MITRA PERKASA EKATAMA" <em>Journal of Information System, Applied, Management, Accounting and Research</em> [Online], Volume 10 Number 3 (30 July 2026)