Virda Putri Kumalasari, Rusdi Rusdi and Ainur Rachman 2026. The Relationship between the Availability of Family Toilets and Handwashing Behavior with the Incidence of Stunting in the Maratua Islands District, Berau Regency. International Journal of Health Engineering and Technology. 4, 6 (Mar. 2026). DOI:https://doi.org/10.55227/ijhet.v4i6.591.