ทองลาด แ. ., พรมจันทร์ ธ. ., and สีกุด ภ. “The Relationship Between Social Relationship and Self-Esteem With Life Quality of the Elderly in Krachod Sub-District Health Promotion Hospital, Muang District, Nakhon Ratchasima Province”. Primary Health Care Journal (Northeastern Edition), vol. 36, no. 1, Oct. 2021, pp. 48-57, https://thaidj.org/index.php/pjne/article/view/10956.