Yangjun P, Sudnongbua S. Factors Influencing Loneliness among Karen Elderly People with Diabetes and Hypertension Disease in Tha Song Yang District, Tak Province. JPNC [internet]. 2024 Dec. 29 [cited 2026 Sep. 30];35(2):173–185. available from: https://he01.tci-thaijo.org/index.php/pnc/article/view/262021