Aryuyuen, W., S. Chanthamolee, P. Suwan, and P. Hoonnirun. “Development Maternal – Fetal Attachment Promotion Model of Unwanted Pregnant Adolescents Chiang Rai Province”. Journal of The Royal Thai Army Nurses, vol. 22, no. 2, Aug. 2021, pp. 286-94, https://he01.tci-thaijo.org/index.php/JRTAN/article/view/251671.