Hidayah, Arinil, Nurul Hidayah Nasution, Febrina Angraini Simamora, Nanda Masraini Daulay, and Yanna Wari Harahap. 2023. “The Effectiveness of Peer Group Health Education Against Behaviour Change Personal Hygiene for Primary School Students”. KnE Social Sciences 8 (4), 755–762. https://doi.org/10.18502/kss.v8i4.12970.