สิงห์เถื่อน ณ., มั่นคง ส., and ศิรโพธิ์งาม ย. “Caregiving Activities, Motivations for Caregiving, and Job Satisfaction of Paid Caregivers for Bed Bound Older Adults”. Journal of Thailand Nursing and Midwifery Council, vol. 33, no. 3, Sept. 2018, pp. 99-113, https://he02.tci-thaijo.org/index.php/TJONC/article/view/121529.