Thadakant, S., and W.- nagm Kritsupalerk. “Thai Women’s Belief on Roles of Nurse-Midwives Working With Pregnant Women in Antenatal, Intranatal and Postnatal Units”. Ramathibodi Medical Journal, vol. 32, no. 1, Mar. 2009, pp. 21-31, https://he02.tci-thaijo.org/index.php/ramajournal/article/view/175136.