Phatharapreeyakul, L., P. Kraithaworn, and N. Piaseu. “Perceived Social Isolation, Self-Care Behaviors and Health Status Among Community Dwelling Older Adults Living Alone”. The Bangkok Medical Journal, vol. 11, no. 1, Feb. 2016, p. 17, doi:10.31524/bkkmedj.2016.02.004.