<?xml version="1.0" encoding="UTF-8"?>
<xml><bibliography><APA>Kornwalai Kinpoon และ Sukanya Chaiyarach. (2021) The Incidence and Risk Factors for Preterm Delivery in Northeast Thailand. &lt;i&gt;Thai Journal of Obstetrics and Gynaecology&lt;/i&gt;, &lt;i&gt;29&lt;/i&gt;(2), 100-111.</APA><Chicago>Kornwalai Kinpoon และ Sukanya Chaiyarach. "The Incidence and Risk Factors for Preterm Delivery in Northeast Thailand". Thai Journal of Obstetrics and Gynaecology  29 (2021):100-111.</Chicago><MLA>Kornwalai Kinpoon และ Sukanya Chaiyarach. The Incidence and Risk Factors for Preterm Delivery in Northeast Thailand. PIMDEE Co. Ltd.:ม.ป.ท. 2021.</MLA></bibliography></xml>
