Novianty, S., Pasaribu, H.S. and Pasaribu, A.P. 2019. Risk Factors of Soil-transmitted Helminthiasis in Pre-School Children. Journal Of The Indonesian Medical Association. 68, 2 (Oct. 2019), 86-92. DOI:https://doi.org/10.47830/jinma-vol.68.2-2018-91.