Laohasthit S. Development of Participatory Extracurricular Activities for Students, Teachers, and Parents to Promote Awareness and Understanding for Preventing and Reducing Hate Speech Among Lower Secondary School Students in Phetchaburi Province. J.Grad Res [internet]. 2026 Jun. 19 [cited 2026 Aug. 29];17(1):JGR-17. available from: https://so02.tci-thaijo.org/index.php/banditvijai/article/view/283649