N. Ngatemi, T. Purnama, and S. Suwarsono, “Development of educational model of the pillow book kesgi as learning to brushing teeth for preschool children”, J. Drug Delivery Ther., vol. 12, no. 6, pp. 89–93, Nov. 2022, doi: 10.22270/jddt.v12i6.5818.