Mad-a-dam, Wikanda, and Patcharee Komjakraphan. 2023. “The Development of Grandparents’ Care Competency Program for Enhancing Fine Motor and Cognitive development of Preschool Children”. Journal of Research in Nursing-Midwifery and Health Sciences 43 (3):114-28. https://he02.tci-thaijo.org/index.php/nur-psu/article/view/263066.