Smith, Michael; et al. (2013). "Aztec period houses and terraces at Calixtlahuaca: The changing morphology of a Mesoamerican hilltop urban center". Journal of Field Archaeology. 38:3 (3): 225–241. doi:10.1179/0093469013Z.00000000058. S2CID9803647.
Smith, Michael; et al. (2013). "Aztec period houses and terraces at Calixtlahuaca: The changing morphology of a Mesoamerican hilltop urban center". Journal of Field Archaeology. 38:3 (3): 225–241. doi:10.1179/0093469013Z.00000000058. S2CID9803647.