Kraithaworn, P., R. Boonpha, and N. Piaseu. “Factors Related to Fear of Death Among Community Dwelling Older Adults Living Alone With Chronic Diseases”. Nursing Research and Innovation Journal, vol. 26, no. 3, Jan. 2021, pp. 325-37, https://he02.tci-thaijo.org/index.php/RNJ/article/view/241265.