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Henri Hartman, Gina Isabelina Suseno, Marlin Himawati. Children’s Aged 9 - 12 Years Knowledge About Toothbrushes Cleanliness. Jurnal EduHealth [Internet]. 2022 Jul. 9 [cited 2026 May 6];13(01):37-42. Available from: https://ejournal.seaninstitute.or.id/index.php/healt/article/view/289