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.