Phowat, Theerawat, Sutham Nanthamongkolchai, Supachai Pitikultang, Chokchai Munsawaengsub, and Pimsurang Taechaboonsermsak. “Factors Influencing Successful Aging in Pichit Province”. Journal of Health Science of Thailand 28, no. Supplement 2 (December 6, 2019): S6-S15. Accessed December 11, 2025. https://www.thaidj.org/index.php/JHS/article/view/8276.