Baitzel, Sarah I.; Trigo Rodríguez, David E. (2019). "The Tiwanaku Camelid Sacrificer: Origins and Transformations of Animal Iconography in the Context of Middle Horizon (A.D. 400–1100) State Expansion". Ñawpa Pacha: Journal of Andean Archaeology. 39 (1): 31–56. doi:10.1080/00776297.2019.1574958.
Baitzel, Sarah I.; Trigo Rodríguez, David E. (2019). "The Tiwanaku Camelid Sacrificer: Origins and Transformations of Animal Iconography in the Context of Middle Horizon (A.D. 400–1100) State Expansion". Ñawpa Pacha: Journal of Andean Archaeology. 39 (1): 31–56. doi:10.1080/00776297.2019.1574958.
Baitzel, Sarah I.; Trigo Rodríguez, David E. (2019). "The Tiwanaku Camelid Sacrificer: Origins and Transformations of Animal Iconography in the Context of Middle Horizon (A.D. 400–1100) State Expansion". Ñawpa Pacha: Journal of Andean Archaeology. 39 (1): 31–56. doi:10.1080/00776297.2019.1574958.
Baitzel, Sarah I.; Trigo Rodríguez, David E. (2019). "The Tiwanaku Camelid Sacrificer: Origins and Transformations of Animal Iconography in the Context of Middle Horizon (A.D. 400–1100) State Expansion". Ñawpa Pacha: Journal of Andean Archaeology. 39 (1): 31–56. doi:10.1080/00776297.2019.1574958.
Baitzel, Sarah I.; Trigo Rodríguez, David E. (2019). "The Tiwanaku Camelid Sacrificer: Origins and Transformations of Animal Iconography in the Context of Middle Horizon (A.D. 400–1100) State Expansion". Ñawpa Pacha: Journal of Andean Archaeology. 39 (1): 31–56. doi:10.1080/00776297.2019.1574958.