Oliveira, Maria Helena, and Francisco Renato Lima. “Libras Learning Process for a Hearing Impaired Child: A Case Study”. Journal of Social Sciences, Humanities and Research in Education 1, no. 2 (December 15, 2018): 82-88. Accessed September 24, 2026. https://lestu.org/journals/index.php/josshe/article/view/43.