Pinto, L. P.; Setz, E. Z. (2004). "Diet of Alouatta belzebul discolor in an Amazonian rain forest of Northern Mato Grosso State, Brazil". International Journal of Primatology. 25 (6): 1197–1211. doi:10.1023/b:ijop.0000043958.75534.7f. S2CID26131905.
Pinto, L. P.; Setz, E. Z. (2004). "Diet of Alouatta belzebul discolor in an Amazonian rain forest of Northern Mato Grosso State, Brazil". International Journal of Primatology. 25 (6): 1197–1211. doi:10.1023/b:ijop.0000043958.75534.7f. S2CID26131905.