Sinaga, C. L.; Rimbun, S.; Tarigan, M. B. .; Hutasoit, E. S. P.; Sinatra, J. A THE RELATIONSHIP BETWEEN KNOWLEDGE LEVEL AND ENVIRONMENTAL SANITATION ON THE INCIDENCE OF DIARRHEA IN TODDLERS AT SAWIT SEBERANG HEALTH CENTER, LANGKAT, NORTH SUMATRA, 2023-2024: THE RELATIONSHIP BETWEEN KNOWLEDGE LEVEL AND ENVIRONMENTAL SANITATION ON THE INCIDENCE OF DIARRHEA IN TODDLERS AT SAWIT SEBERANG HEALTH CENTER, LANGKAT, NORTH SUMATRA, 2023-2024. JKM 2024, 17.