Yuliasari, P. and Suwanto, P. 2019. IMPLEMENTATION PROMPTNESS ANALYSIS IN MENINGOCOCCAL MENINGITIS VACCINATION IN UMRAH PILGRIMS IN SURABAYA. Jurnal Berkala Epidemiologi. 7, 2 (Aug. 2019), 147–154. DOI:https://doi.org/10.20473/jbe.V7I22019.147-154.