Kumfu, S., K. Chaimongkol, C. Chaichompoo, and P. Kaewmuneewong. “Screening of Dementia and Self-Care Burden Among the Elderly in Mae Chan District, Chiang Rai Province”. Srinagarind Medical Journal, vol. 29, no. 4, Sept. 2014, pp. 389-93, https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/21997.