Anggraini, S. A., and L. Y. Hendrati. “Diphtheria Distribution According to DPT-HB-Hib Immunization and Population Density in Surabaya”. Media Gizi Kesmas, vol. 12, no. 2, Nov. 2023, pp. 632-7, doi:10.20473/mgk.v12i2.2023.632-637.