Kartika, D. S., Rahardjo, S. S. and Murti, B. (2017) “Multilevel Analysis on the Contextual Effects of Hygiene, Environmental Sanitation, and Diarrhea Prevention in Elementary School Students in Ngawi, East Java”, Journal of Epidemiology and Public Health, 4(2), pp. 97–108. Available at: https://www.jepublichealth.com/index.php/jepublichealth/article/view/130 (Accessed: 27 April 2024).