Phongniran, K. . “A Study on Gross Motor Ability of Down Syndrome Children by Using Role Playing Activities: A Study on Gross Motor Ability of Down Syndrome Children by Using Role Playing Activities”. LAWARATH SOCIAL E – JOURNAL, vol. 2, no. 1, Apr. 2020, pp. 55-64, https://so04.tci-thaijo.org/index.php/lawarathjo/article/view/241492.