Songpracha, P. ., P. . Maharka, and T. . Srisurakul. “The Environment Supporting Students’ Learning in School for the Deaf”. Journal Of Ratchasuda Institute for Research and Development of Persons With Disabilities, vol. 16, no. 1, June 2020, pp. 46-58, https://so03.tci-thaijo.org/index.php/RSjournal/article/view/244222.