HARAHAP, Putri Amalia Ramadhani; YULIANA, Yuliana. Hubungan Pengetahuan tentang Vaksin Meningitis terhadap Ketepatan Waktu Vaksinasi Meningitis pada Jemaah Umrah. ULIL ALBAB : Jurnal Ilmiah Multidisiplin, [S. l.], v. 3, n. 3, p. 343–350, 2024. DOI: 10.56799/jim.v3i3.3025. Disponível em: https://al-haramjournal.co.id/JIM/article/view/3025. Acesso em: 6 aug. 2026.