Pongpaiboon, P., Kritcharoen, S. and Phonin, K. (2015) “The Effects of Natural Childbirth Care on Postpartum Perineal Pain and Maternal-Infant Attachment for the Primiparous Postpartum Women”, Journal of Research in Nursing-Midwifery and Health Sciences , 35(1), pp. 37–48. available at: https://he02.tci-thaijo.org/index.php/nur-psu/article/view/33091 (accessed: 20 September 2026).