Lopes, M. Aparecida; Ferrari, Stephen F. (18 December 2000). "Effects of Human Colonization on the Abundance and Diversity of Mammals in Eastern Brazilian Amazonia". Conservation Biology. 14 (6): 1658–1665. doi:10.1111/j.1523-1739.2000.98402.x. PMID35701945. S2CID86605285.
Oliveira, Ana Cristina M.; Ferrari, Stephen F. (2008). "Habitat Exploitation by Free-ranging Saguinus niger in Eastern Amazonia". International Journal of Primatology. 25 (6): 1499–1510. doi:10.1007/s10764-008-9321-2. S2CID19704935.
Oliveira, Ana Cristina M.; Ferrari, Stephen F. (September 2000). "Seed dispersal by black-handed tamarins, Saguinus midas niger (Callitrichinae, Primates): implications for the regeneration of degraded forest habitats in eastern Amazonia". Journal of Tropical Ecology. 16 (5): 709–716. doi:10.1017/s0266467400001668. S2CID86831975.
Gregorin, R.; De Vivo, M. (2013). "Revalidation of Saguinus ursula Hoffmannsegg (Primates: Cebidae: Callitrichinae)". Zootaxa. 3721 (2): 172–182. doi:10.11646/zootaxa.3721.2.4. PMID26120667.
Lopes, M. Aparecida; Ferrari, Stephen F. (18 December 2000). "Effects of Human Colonization on the Abundance and Diversity of Mammals in Eastern Brazilian Amazonia". Conservation Biology. 14 (6): 1658–1665. doi:10.1111/j.1523-1739.2000.98402.x. PMID35701945. S2CID86605285.
Lopes, M. Aparecida; Ferrari, Stephen F. (18 December 2000). "Effects of Human Colonization on the Abundance and Diversity of Mammals in Eastern Brazilian Amazonia". Conservation Biology. 14 (6): 1658–1665. doi:10.1111/j.1523-1739.2000.98402.x. PMID35701945. S2CID86605285.
Oliveira, Ana Cristina M.; Ferrari, Stephen F. (2008). "Habitat Exploitation by Free-ranging Saguinus niger in Eastern Amazonia". International Journal of Primatology. 25 (6): 1499–1510. doi:10.1007/s10764-008-9321-2. S2CID19704935.
Oliveira, Ana Cristina M.; Ferrari, Stephen F. (September 2000). "Seed dispersal by black-handed tamarins, Saguinus midas niger (Callitrichinae, Primates): implications for the regeneration of degraded forest habitats in eastern Amazonia". Journal of Tropical Ecology. 16 (5): 709–716. doi:10.1017/s0266467400001668. S2CID86831975.