Khamaruddin, S., Rahmah, L. and Prasetyorini, T. 2019. The Relationship of House Environmental Sanitation with Infection of Muhamadiyah Elementry School Students in Deli Serdang District. Asian Journal of Applied Sciences. 7, 6 (Dec. 2019). DOI:https://doi.org/10.24203/ajas.v7i6.6022.