Sudirman, A. A., and D. . Modjo. “Analysis of the Implementation of the Measles Rubella (Mr) Immunization Program in Preschool Age Children 3-6 Years in Gorontalo Regency”. Journal of Community Health Provision, vol. 2, no. 1, Jan. 2022, pp. 1-8, doi:10.55885/jchp.v2i1.114.