F. J. Alós Cívico, A. Sánchez Raya, and J. A. Moriana Elvira, “Procedure for teaching right–left discrimination. A case study of a child with visual impairment and intellectual disability”, Apunt. Psic., vol. 26, no. 3, pp. 441–447, Nov. 2008, doi: 10.55414/p1ay2841.