Anggriyani, R., Y. T. . Lukiyono, A. . Andini, and A. P. R. . Santoso. “Hand Washing Behavior Using Soap and Not Using Soap on the Incidence of Ascariasis in Children in Grades 1-3 at Simokerto Elementary School”. Environmental and Toxicology Management, vol. 3, no. 2, Oct. 2024, pp. 38-42, doi:10.33086/etm.v3i2.6400.