พิมเสน อ., วิโรจน์รัตน์ ว., and จิตรมนตรี น. “Community-Dwelling Older Adults’ Attitudes, Subjective Norm, Perceived Behavioural Control, and Intention to Make Living Wills”. The Journal of Thailand Nursing and Midwifery Council, vol. 34, no. 1, Feb. 2019, pp. 74-87, https://he02.tci-thaijo.org/index.php/TJONC/article/view/152477.