PERANCANGAN GLOBAL POSITIONING SYSTEM (GPS) PADA SISTEM PRESENSI ONLINE BERBASIS WEBSITE MENGGUNAKAN METODE WATERFALL. JUKANTI [Internet]. 2023 Nov. 26 [cited 2026 May 27];6(2):285-98. Available from: https://ojs.cbn.ac.id/index.php/jukanti/article/view/1038