Mei Erawati, Aris Puji Widodo, and Farid Agushybana. “Information System Design Of Kartu Batang Sehat (Kbs) To Provide Public Health Service In Batang District ”. International Journal of Health, Education & Social (IJHES), Vol. 2, no. 9, Sept. 2019, pp. 26-40, doi:10.1234/ijhes.v2i9.23.