Kamudhamas, Atiwut. “Prevalence and causes of anemia in pregnant women attending antenatal clinic at Thammasat Hospital”. Thai Journal of Obstetrics and Gynaecology 11, no. 2 (June 1, 1999): 81–86. accessed September 29, 2026. https://he02.tci-thaijo.org/index.php/tjog/article/view/257164.