Siguas 1, Rayed Head, detail of a petroglyph at the site of Pisanay at Tin Tin, Sihuas Valley, department of Arequipa. Photo, July 15, 2006.
Isbell, William H.; Uribe, Mauricio I.; Tiballi, Anne; Edward P. Zegarra, 2018, "Visual database", https://doi.org/10.25346/S6/1B33FN.