Boonaphatjarern, N. ., Panthong, K. . . and Juntapremjit, S. . (2020) “The Effects of Applying Graphic Images Based on the Mandala structure for Increasing Visual Attention and Visuospatial ability for Children at Risk of ADHD: -”, Dhammathas Academic Journal, 20(3), pp. 173–186. available at: https://so06.tci-thaijo.org/index.php/dhammathas/article/view/207590 (accessed: 7 January 2026).