Jungsiwapornpong, J., N. Chaloumsuk, and P. Prasitwattanasaree. “Factors Predicting Postpartum Depression Among Mothers with Preterm Birth”. Thammasat University Hospital Journal Online, vol. 10, no. 3, Nov. 2025, pp. 294-09, https://he02.tci-thaijo.org/index.php/TUHJ/article/view/275895.