Machado, W. C. A., Figueiredo, N. M. A. de, Tonini, T., Silva, C. R. L. da and Silva, R. C. L. da (2012) “The search for Brazilian sign language course: a descriptive exploratory study”, Online Brazilian Journal of Nursing. Niterói (RJ), 11(2), pp. 331-45. doi: 10.5935/1676-4285.20120030.