โบสิทธิพิเชฎฐ์ ธ. “Prevalence of Knee Osteoarthritis in Elderly in Family Practice Center, Phra Nakhon Si Ayutthaya Province”. Journal of Preventive Medicine Association of Thailand, vol. 7, no. 1, May 2018, pp. 1-10, https://he01.tci-thaijo.org/index.php/JPMAT/article/view/125411.