Nuibandan, A., R. Vachprasit, and D. Siripituptum. “The Effect of Bud-Dho Concentrating Meditation Practice on Quality of Sleep in Nursing Students, Prince of Songkla University”. Journal of Research in Nursing-Midwifery and Health Sciences, vol. 36, no. 4, Dec. 2016, pp. 29-39, https://he02.tci-thaijo.org/index.php/nur-psu/article/view/73464.