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Lechtman, Heather (January 1984). "Andean value systems and the development of prehistoric metallurgy". Technology and Culture. 25 (1): 1–36. doi:10.2307/3104667. JSTOR3104667. S2CID110514269.
Rutledge, John W.; Gordon, Robert B. (July 1987). "The work of metallurgical artificers at Machu Picchu, Peru". American Antiquity. 52 (3): 578–594. doi:10.2307/281600. JSTORi212414. S2CID163855761.
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Carlson, John B. (5 September 1975). "Lodestone compass: Chinese or Olmec primacy? Multidisciplinary analysis of an Olmec hematite artifact from San Lorenzo, Veracruz, Mexico". Science. 189 (4205): 753–760. doi:10.1126/science.189.4205.753. PMID17777565. S2CID33186517.
Anawalt, Patricia Rieff (1992). "Ancient cultural contacts between Ecuador, West Mexico, and the American Southwest: Clothing similarities". Latin American Antiquity. 3 (2): 121. doi:10.2307/971939. JSTOR971939. S2CID164193577.
Lechtman, Heather (January 1984). "Andean value systems and the development of prehistoric metallurgy". Technology and Culture. 25 (1): 1–36. doi:10.2307/3104667. JSTOR3104667. S2CID110514269.
Rutledge, John W.; Gordon, Robert B. (July 1987). "The work of metallurgical artificers at Machu Picchu, Peru". American Antiquity. 52 (3): 578–594. doi:10.2307/281600. JSTORi212414. S2CID163855761.
Carlson, John B. (5 September 1975). "Lodestone compass: Chinese or Olmec primacy? Multidisciplinary analysis of an Olmec hematite artifact from San Lorenzo, Veracruz, Mexico". Science. 189 (4205): 753–760. doi:10.1126/science.189.4205.753. PMID17777565. S2CID33186517.
Hosler, Dorothy (September 2009). "Modelling early metallurgy I: West Mexican metallurgy, revisited and revised". Journal of World Prehistory. 22 (3): 185–212. doi:10.1007/s10963-009-9021-7. S2CID161598095.
Taube, K. A. (2018) [1992]. "Chapter 8: The iconography of mirrors at Teotihuacan"(PDF). Studies in Ancient Mesoamerican Art and Architecture: Selected Works by Karl Andreas Taube. San Francisco, California: Precolumbia Mesoweb Press. pp. 204–225, 281–351. Archived from the original(PDF) on 2021-10-06. Retrieved 2021-08-30 – via mesoweb.com.
Pires-Ferreira, Jane Wheeler; Evans, Billy Joe (2011). "Mössbauer spectral analysis of Olmec iron ore mirrors: New evidence of formative period exchange networks in Mesoamerica". In Browman, David L. (ed.). Cultural Continuity in Mesoamerica. Berlin / New York: De Gruyter Mouton. pp. 101–154. doi:10.1515/9783110807776.101. ISBN978-311-080777-6. OCLC922943347.