Singpun, Phensri, and Sarinya Sriphetcharawut. 2018. “Effectiveness of the Protocol for Enhancing Handwriting Readiness Skills of Preschoolers Aged 4-6 Years”. Journal of Associated Medical Sciences 52 (1):73-78. https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/146227.