Khoyun, S., W. Sukonthawat, B. Kitkhuandee, and P. Thoin. “Needs and Need Responses of the Family Members of Patients Treated in the Intensive Care Unit”. Srinagarind Medical Journal, vol. 36, no. 3, June 2021, pp. 333-9, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/251213.