หลงผาสุข ณ., มั่นคง ส., and ศิรโพธิ์งาม ย. “Health Conditions and Self-Care Activities of Older Caregivers Caring for Bedridden Older Adults”. The Journal of Thailand Nursing and Midwifery Council, vol. 33, no. 2, Aug. 2018, pp. 97-109, https://he02.tci-thaijo.org/index.php/TJONC/article/view/117425.