Hutagalung, Sunna Vyatra, Rahmah Khairuna Damanik, and Pongruj Rattaprasert. 2024. “Parasite Contamination of Water Source at Pangkalan Masyhur Sub-District, Medan Johor District”. Sumatera Medical Journal 7 (3):116-20. https://doi.org/10.32734/sumej.v7i3.11826.