Pérez Brignoli, Héctor. "La dinámica demográfica de las poblaciones indígenas del trópico húmedo en América Central (censos del 2000)." Paper presented at International Union for the Scientific Study of Population XXVth International Population Conference, Tours, France, July 21, 2005. Accessed July 16, 2021. https://iussp2005.princeton.edu/papers/51583.

Pérez Brignoli, Héctor. "La dinámica demográfica de las poblaciones indígenas del trópico húmedo en América Central (censos del 2000)." Paper presented at International Union for the Scientific Study of Population XXVth International Population Conference, Tours, France, July 21, 2005. Accessed July 16, 2021. https://iussp2005.princeton.edu/papers/51583.