Wungrath, J., Mongkol, P., Thongprachum, A., Boonchieng, W., Pienrakkarn, K., Naksen, W. and Chanwikrai, Y. 2020. Effect of Using the Basic Elderly Care Handbook on Knowledge and Behavior Regarding Elderly Care Among Elderly Caregivers in Choeng Doi Subdistrict, Doi Saket District, Chiang Mai Province. Journal for Community Development and Life Quality. 8, 1 (Jan. 2020), 16–30.