Janpilom, N., & Tangkawanich, T. (2018). Effects of Self Efficacy Promoting Program on Competencies Regarding Emergency Medical Service Among Emergency Medical Responders. NU Journal of Nursing and Health Sciences, 12(1), 24–34. Retrieved from https://he01.tci-thaijo.org/index.php/NurseNu/article/view/160224