Punkaew , S., Nantsupawat, A. and Thungjaroenkul , P. (2020) “Situational Analysis of Risk Management for Postpartum Hemorrhage, Chiangrai Prachanukroh Hospital”, Nursing Journal CMU, 47(4), pp. 372–383. available at: https://he02.tci-thaijo.org/index.php/cmunursing/article/view/247964 (accessed: 20 September 2026).