แสนศิริ ยงยุทธ, วัฒนสมบูรณ์ ภรณี, Manirat Therawiwat, and Supreya Tansakul. 2021. “Effects of Handwashing Behavior Promoting Program among Primary School Children”. Thai Journal of Health Education 44 (2):102-12. https://he01.tci-thaijo.org/index.php/muhed/article/view/251326.