Yoosuk ย., Surakarn อ. ., and Junprasert ฐ. . “A Mixed Methods Research to Develop an Attachment Test of First-Time Adolescent Mothers to Their Children”. Princess of Naradhiwas University Journal, vol. 14, no. 2, May 2022, pp. 128-46, https://li01.tci-thaijo.org/index.php/pnujr/article/view/252611.