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Hidayah, A. , Nasution, N.H. , Angraini Simamora, F. , Masraini Daulay, N. and Wari Harahap, Y. 2023. The Effectiveness of Peer Group Health Education Against Behaviour Change Personal Hygiene for Primary School Students. KnE Social Sciences. 8, 4 (Mar. 2023), 755–762. DOI:https://doi.org/10.18502/kss.v8i4.12970.