Rosdiana, R. and Yusup, M.H. 2022. The Relationship of Knowledge and Attitude with Utilization of Baharu River Water in Kelambir Village, Hamparan Perak District, Deli Serdang Regency. Journal La Medihealtico. 3, 1 (Mar. 2022), 79-87. DOI:https://doi.org/10.37899/journallamedihealtico.v3i1.588.