khamthanet, R., and P. Arunyaphark. “The Guideline for Caring of Pregnant Women and Postpartum Women in the Post-Pandemic of the 2019 Novel Coronavirus Disease (COVID-19)”. Journal of Nursing, Siam University, vol. 23, no. 45, Jan. 2023, pp. 126-39, https://he01.tci-thaijo.org/index.php/nursingsiamjournal/article/view/256980.