Sukkhee, V. ., B. . . Boonamnuaykij, S. . Pichensophon, R. Leesen, and M. . Jinakul. “Prevention of Maternal Death: A Model of 3 Southern Border Provinces”. Journal of Public Health Nursing, vol. 34, no. 2, Aug. 2020, pp. 19-35, https://he01.tci-thaijo.org/index.php/phn/article/view/245787.