Purimat, C., S. Nanthamongkolchai, C. Munsawaengsub, S. Pitikultang, and K. Yodmai. “Factors Influencing Quality of Life Among Caregivers of Dependent Elderly Persons in Chanthaburi Province”. Journal of Health Science of Thailand, vol. 28, no. 4, Aug. 2019, pp. 610-9, https://thaidj.org/index.php/JHS/article/view/7747.