Hattapradit, F., S. Kaewsawat, and S. Thanapop. “Needs for Health Insurance of Migrant Workers in Muang District, Nakhon Si Thammarat Province”. Journal of Health Science of Thailand, vol. 28, no. 1, Aug. 2019, pp. S41-S50, https://thaidj.org/index.php/JHS/article/view/7844.