“Risk Factors for Diarrhea Cases in Communities Living Along Deli River, North Sumatera”, J Epidemiol Public Healt, vol. 4, no. 1, pp. 47–54, Oct. 2018, Accessed: Jan. 16, 2026. [Online]. Available: https://jepublichealth.com/index.php/jepublichealth/article/view/104