Suaysod, Nuannapha, Sutham Nanthamongkolchai, Chokchai Munsawaengsub, and Supachai Pitikultang. “Family Functioning and Strength of Family with Elderly in Phrae Province”. Thai Journal of Health Education 44, no. 1 (May 18, 2021): 129–139. accessed September 11, 2026. https://he01.tci-thaijo.org/index.php/muhed/article/view/240521.