Ningtyas, Dwi Wahyu, and Arief Wibowo. 2015. “The Influence of Quality of Measles Vaccine to The Incidence of Measles in Pasuruan Regency”. Jurnal Berkala Epidemiologi 3 (3):315-26. https://doi.org/10.20473/jbe.V3I32015.315-326.