Herlina, S., Puspa Widiyana, A., Ramadhan, M., Ali Rahmatullah, M., & Fadlan Rofiq, M. (2023). Training on Clean Water Treatment Using Slow Sand Filters And Biomass Filters at Bahrul Magfiroh Islamic Boarding School Malang City. Soeropati: Journal of Community Service, 6(1), 71-84. https://doi.org/10.35891/js.v6i1.4384