Chuthaarayakul, S. . . . . “Effectiveness of Implementing Clinical Practice Guideline for Prevention of Postpartum Hemorrhage at Chiangkham Hospital, Phayao Province”. Journal of Nakornping Hospital, vol. 11, no. 1, June 2020, https://he01.tci-thaijo.org/index.php/jnkp/article/view/242247.