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Sipra Barutu, “The Relationship Between The Condition Of Latrine Buildings, The Condition Of Waste Water Drainage Channels (SPAL) And The Habit Of Washing Hands With Soap With The Incidence Of Diarrhea In Toddlers In The Working Area Of The Sionom Hudon Timur II Village Health Post, District, Humbang Hasundutan Regency In 2021”, health, vol. 1, no. 01, pp. 1–13, Jan. 2023.