S, K., P. C, S. S, and A. W. “A pilot study: The effectiveness of the mindfulness training program to reduce ADHD symptoms among 12-15 year-old adolescents with the risk of ADHD”. Biomedical Sciences and Clinical Medicine, vol. 60, no. 4, Oct. 2021, pp. 551-6, https://he01.tci-thaijo.org/index.php/CMMJ-MedCMJ/article/view/247396.