PERANCANGAN APLIKASI PENCARIAN LOKASI VAKSIN MENGGUNAKAN METODE HAVERSINE BERBASIS ANDROID. JOURNAL OF SCIENCE AND SOCIAL RESEARCH, [S. l.], v. 7, n. 1, p. 235–240, 2024. DOI: 10.54314/jssr.v7i1.1673. Disponível em: https://jurnal.goretanpena.com/index.php/JSSR/article/view/1673.. Acesso em: 4 may. 2026.