Carvajal García, M. H., Moreira Sánchez, J. L., Delgado Cobeña, E. I., & Moreira Sánchez, Y. K. (2023). Picture exchange communication system. A methodological guide to develop verbal communication in children with autism. Religación, 8(37), e2301070. https://doi.org/10.46652/rgn.v8i37.1070