Prathanee, B., A. Rattanapitak, T. . Sampanthawong, and K. . Makarabhirom. “Speech Services by Speech Volunteers for Children With Cleft Lip and Palate in Professional Lacking Area: Pilot Study”. Journal of Associated Medical Sciences, vol. 57, no. 2, Feb. 2024, pp. 31-40, https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/265069.