Ferrari S; Veiga L & Urbani Bernardo (2007). "Geophagy in New World Monkeys (Platyrrhini): Ecological and Geographic Patterns". Folia Primatologica; International Journal of Primatology. 79 (5): 402–415. doi:10.1159/000141901. PMID18587239. S2CID52827312.
Ferrari S; Veiga L & Urbani Bernardo (2007). "Geophagy in New World Monkeys (Platyrrhini): Ecological and Geographic Patterns". Folia Primatologica; International Journal of Primatology. 79 (5): 402–415. doi:10.1159/000141901. PMID18587239. S2CID52827312.
Ferrari S; Veiga L & Urbani Bernardo (2007). "Geophagy in New World Monkeys (Platyrrhini): Ecological and Geographic Patterns". Folia Primatologica; International Journal of Primatology. 79 (5): 402–415. doi:10.1159/000141901. PMID18587239. S2CID52827312.