Chantarasakha, K., and K. Wilaiolarn. “MEMORIZATION-HELPING TOYS DESIGN PRODUCT FOR ELDERLY”. Srinakharinwirot Research and Development Journal of Humanities and Social Sciences, vol. 16, no. 31, January-June, Apr. 2024, pp. 1-13, Article 272065, https://so04.tci-thaijo.org/index.php/swurd/article/view/272065.