1. [Sitio web oficial de Yellowcard](https://www.Yellowcardrock.com/music/)
2. [Significados de la canción](https://www.songmeanings.com/artist/view/songs/8330/)
3. [Genio](https://genius.com/artists/Yellowcard)
4. [MetroLyrics](https://www.metrolyrics.com/amarillocard-lyrics.html)
5. [AZLyrics](https://www.azlyrics.com/y/Yellowcard.html)
6. [Guitarra definitiva](https://www.ultimate-guitar.com/artist/Yellowcard_t1252)