RÖHE, Fabio; SILVA-JR, José S. Confirmation of Callicebus dubius (Pitheciidae) distribution and evidence of invasion into the geographic range of Callicebus stephennashi. Neotropical Primates, Arlington, VA, USA, v. 16, n. 2, p. 71–73, 2009. DOI: 10.1896/044.016.0207. Disponível em: https://primate.socgen.ucla.edu/index.php/multivitaminic/article/view/700.. Acesso em: 19 apr. 2025.