Phatharapreeyakul, Lithong, Phachongchit Kraithaworn, and Noppawan Piaseu. “Perceived Social Isolation, Self-Care Behaviors and Health Status Among Community Dwelling Older Adults Living Alone”. The Bangkok Medical Journal 11, no. 1 (February 19, 2016): 17. Accessed October 20, 2021. https://he02.tci-thaijo.org/index.php/bkkmedj/article/view/221419.