https://www.uruguayeduca.edu.uy/Portal.Base/Web/VerContenido.aspx?GUID=eda6b95d-7811-4a71-ac24-45037e33c841&ID=210018#.U-44wfl5MSM
https://ceibal.edu.uy/UserFiles/P0001/ODEA/ORIGINAL/110722_lectura_hipertexto4.elp/elementos_que_componen_un_hipertexto.html
https://www.uruguayeduca.edu.uy/Portal.Base/Web/verContenido.aspx?ID=210104