Punthmatharith, Busakorn, Onanong Mala, Pranee Khamchan, Jutarat Kongpet, Sawvanee Jinnukul, and Pachwirin Suwanprapai. 2021. “Effects of Play Activity Arranged by Nursing Students on Happiness of Sick Children and Caregiver’s Satisfaction”. Journal of Research in Nursing-Midwifery and Health Sciences 41 (1):1-13. https://he02.tci-thaijo.org/index.php/nur-psu/article/view/249085.