Kanshana, S., Amornwichet, P., Nuntamanop, S., & Kullerk, N. (2017). Maternal Mortality in Thailand during 1997-1998. Thai Journal of Obstetrics and Gynaecology, 14(2), 111–120. retrieved from https://he02.tci-thaijo.org/index.php/tjog/article/view/88804