David Fleming, "The 'Puquios' of Nazca in Peru: A Prehispanic Invention or Colonial Artifact?" South American Explorer, No. 34, June 1993. Retrieved on 2020-07-11 from https://www.academia.edu/14547368/The_puquios_of_Nazca
Proulx, Donald A. »Nasca Puquios and Aqueducts«(PDF). University of Massachusetts. Pridobljeno 21. aprila 2021. From Nasca:Geheimnisvolle Zeichen im Alten Peru,edited by Judith Rickenbach (1999), pages 89–96.