Arroyo Guzmán, Paola (September 20, 2018). "Utuado busca la forma de sobrevivir". El Vocero de Puerto Rico (in Spanish). Archived from the original on April 11, 2021. Retrieved April 11, 2021.
enciclopediapr.org
"Utuado Municipality". enciclopediapr.org. Fundación Puertorriqueña de las Humanidades (FPH). Archived from the original on November 21, 2017. Retrieved March 20, 2019.
"UTUADO". LexJuris (Leyes y Jurisprudencia) de Puerto Rico (in Spanish). February 19, 2020. Archived from the original on February 19, 2020. Retrieved September 17, 2020.
mcu.es
aer.mcu.es
Archivo General de Indias, Reference Code: Ultramar 5147, EXP. 13, Document accessed and viewed at Archivos Españoles en red: www.http://aer.mcu.es/sgae/
"Caguana Site". National Historic Landmark summary listing. National Park Service. Archived from the original on December 6, 2007. Retrieved June 28, 2007.
"Caguana Site". National Historic Landmark summary listing. National Park Service. Archived from the original on December 6, 2007. Retrieved June 28, 2007.
"Historia". Autoridad de Energia Electrica de Puerto Rico (AEEPR). Archived from the original on March 8, 2007. Retrieved March 5, 2007.
"Utuado Municipality". enciclopediapr.org. Fundación Puertorriqueña de las Humanidades (FPH). Archived from the original on November 21, 2017. Retrieved March 20, 2019.
Arroyo Guzmán, Paola (September 20, 2018). "Utuado busca la forma de sobrevivir". El Vocero de Puerto Rico (in Spanish). Archived from the original on April 11, 2021. Retrieved April 11, 2021.
"UTUADO". LexJuris (Leyes y Jurisprudencia) de Puerto Rico (in Spanish). February 19, 2020. Archived from the original on February 19, 2020. Retrieved September 17, 2020.
"Archived copy". Archived from the original on November 22, 2008. Retrieved December 2, 2019.{{cite web}}: CS1 maint: archived copy as title (link)