Rosdiana, Rosdiana, and M. Habibi Yusup. 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), 79-87. https://doi.org/10.37899/journallamedihealtico.v3i1.588.