Laohasthit, Sunsern. “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”. Journal of Graduate Research 17, no. 1 (June 19, 2026): JGR–17. accessed August 29, 2026. https://so02.tci-thaijo.org/index.php/banditvijai/article/view/283649.