Kiewvijit, Geerawat, Supit Siriarunrat, and Siriwan Sangin. 2025. “Effects of Self–Management Support Program on Preterm Birth Protection Behavior and Preterm Birth among Pregnant Women with High Risk for Preterm Birth”. Journal of The Royal Thai Army Nurses 26 (3):266-74. https://he01.tci-thaijo.org/index.php/JRTAN/article/view/275234.