Yangjun, Peerawat, and Supaporn Sudnongbua. “Factors Influencing Loneliness among Karen Elderly People with Diabetes and Hypertension Disease in Tha Song Yang District, Tak Province”. Journal of Phrapokklao Nursing College, Chanthaburi 35, no. 2 (December 29, 2024): 173–185. accessed October 1, 2026. https://he01.tci-thaijo.org/index.php/pnc/article/view/262021.