Source: https://repositorio.unicartagena.edu.co/bitstream/handle/11227/6752/CANTA%20CUBA%20UN%20AN%C3%81LISIS%20DE%20LOS%20DISCURSOS%20SOBRE%20LA%20REVOLUCI%C3%93N%20CUBANA%20PRESENTE%20EN%20LAS%20LETRAS%20DE%20LAS%20.pdf