S. Orawongphaisal, C. Saneha, A. Poungkaew, and K. Musikatavorn, “The Effect of Concreate-objective Informational Support Program via Smartphone Application on Anxiety among Relatives of Urgent Patients in Emergency Room”, ์Nurs Sci J Thail, vol. 41, no. 3, pp. 34–49, Jun. 2023.