Srilar, A., Choktanasiri, W., Israngura Na Ayudhya, N. and Weerakiet, S. (2012) “The Retention of Accuracy of Visual Estimation of Blood Loss by Qualified Nurses at 1 and 3 Months following Education Program”, Thai Journal of Obstetrics and Gynaecology. Bangkok, Thailand, 17(3), pp. 163–168. available at: https://he02.tci-thaijo.org/index.php/tjog/article/view/1620 (accessed: 12 September 2026).