Thanomtham, Sirigorn, and Kitiporn Kangkarn. “Efficacy of the Use of Plastic Poly Film Bag for Measuring Intrapatum Blood Loss in Labor Room, Chaiyaphum Hospital”. Journal of Health Science of Thailand 28, no. 1 (March 11, 2019): 161–170. Accessed July 23, 2024. https://thaidj.org/index.php/JHS/article/view/5924.