Noorod, C., J. Sangthong, B. Chaimay, and S. Woradet. “Prevalence of HIV Infection Among Pregnant Women in Phatthalung Province”. Journal of Health Science of Thailand, vol. 28, no. 1, Aug. 2019, pp. S14-S22, https://thaidj.org/index.php/JHS/article/view/7841.