“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: Nov. 14, 2025. [Online]. Available: https://jepublichealth.com/index.php/jepublichealth/article/view/104