Tiengwong, C., and N. Satiansukpong. “Relationship Between Hand Dexterity and Writing Speed of Students Grade 4 - 6”. Journal of Education Studies, vol. 49, no. 3, Sept. 2021, p. EDUCU4903009 (11 pages) doi: 10.14456/educu.2021.48, https://so02.tci-thaijo.org/index.php/EDUCU/article/view/251843.