Begum, Ferdousi. “Innovation of Calibrated Dk Drape for Quantitative Measurement of Blood Loss During and Immediately After Vaginal Delivery”. Bangladesh Journal of Obstetrics & Gynaecology 39, no. 2 (September 28, 2025): 65–73. Accessed October 1, 2025. https://www.banglajol.info/index.php/BJOG/article/view/82182.