Cubicciotti, D. D.; Mason, W. A. (1978). "Comparative studies of social behavior in Callicebus and Saimiri: heterosexual jealousy behavior". Behavioral Ecology and Sociobiology. 3 (3): 311–322. doi:10.1007/BF00296316. S2CID29148310.
Anzenberger, G.; Mendoza, S. P.; Mason, W. A. (1986). "Comparative studies of social behavior in Callicebus and Saimiri: behavioral and physiological responses of established pairs to unfamiliar pairs". American Journal of Primatology. 11 (1): 37–51. doi:10.1002/ajp.1350110105. PMID31979464. S2CID86729566.
Mendoza, S. P.; Reeder, D. M.; Mason, W. A. (2002). "Nature of proximate mechanisms underlying primate social systems: simplicity and redundancy". Evolutionary Anthropology. 11 (1): 112–116. CiteSeerX10.1.1.571.792. doi:10.1002/evan.10071. S2CID29705787.
Ferrari, S.; Iwanga, S.; Messias, M.; Ramos, E.; Ramos, P.; da Cruz Neto, E.; Coutinho, P. (2000). "Titi monkeys (Callicebus spp., Atelidae: Platyrrhini) in the Brazilian state of Rondônia". Primates. 41 (2): 229–234. doi:10.1007/BF02557805. S2CID33425235.
Mendoza, S. P.; Mason, W. A. (1986). "Contrasting responses to intruders and to involuntary separation by monogamous and polygynous New World monkeys". Physiological Behavior. 38 (6): 795–801. doi:10.1016/0031-9384(86)90045-4. PMID3823197. S2CID26077383.
Robinson, J. G. (1979). "An analysis of the organization of vocal communication in the titi monkey Callicebus moloch". Zeitschrift für Tierzuchtung und Zuchtungsbiologie. 49 (4): 381–405. doi:10.1111/j.1439-0310.1979.tb00300.x. PMID115173.
Lawler, R. R.; Ford, S. M.; Wright, P. C.; Easley, S. P. (2006). "The locomotor behavior of Callicebus brunneus and Callicebus torquatus". Folia Primatologica. 77 (3): 228–239. doi:10.1159/000091232. PMID16612097. S2CID6892953.
Youlatos, D. (1999). "Comparative locomotion of six sympatric primates in Ecuador". Annales des Sciences Naturelles. 20 (4): 161–168. doi:10.1016/s0003-4339(00)88884-x.
Wright, P. C. (1989). "The nocturnal primate niche in the new world". Journal of Human Evolution. 18 (7): 635–658. doi:10.1016/0047-2484(89)90098-5.
Robinson, J. G. (1979). "Vocal regulation of use of space by groups of titi monkeys Callicebus moloch". Behavioral Ecology and Sociobiology. 5: 1–15. doi:10.1007/bf00302691. S2CID30990441.
Crandlemire-Sacco, J. (1988). "An ecological comparison of two sympatric primates: Saguinus fuscicollis and Callicebus moloch of Amazonian Peru". Primates. 29 (4): 465–475. doi:10.1007/bf02381134. S2CID22332355.
Meritt Jr., D. A. (1980). "Captive reproduction and husbandry of the douroucouli Aotus trivirgatus and the titi monkey Callicebus spp". International Zoo Yearbook. 20: 52–59. doi:10.1111/j.1748-1090.1980.tb00942.x.
Tirado Herrera, E. R.; Heymann, E. W. (2004). "Does mom need more protein? Preliminary observations on differences in diet composition in a pair of red titi monkeys, Callicebus cupreus". Folia Primatologica. 75 (3): 150–153. doi:10.1159/000078304. PMID15240979. S2CID40269938.
Felton, A.; Felton, A. M.; Wallace, R. B.; Gómez, H. (2006). "Identification, behavioral observations, and notes on the distribution of the titi monkeys Callicebus modestus Lönnberg, 1939 and Callicebus olallae, Lönnberg 1939". Primate Conservation. 20: 41–46. doi:10.1896/0898-6207.20.1.41. S2CID86779155.
Anzenberger, G.; Mendoza, S. P.; Mason, W. A. (1986). "Comparative studies of social behavior in Callicebus and Saimiri: behavioral and physiological responses of established pairs to unfamiliar pairs". American Journal of Primatology. 11 (1): 37–51. doi:10.1002/ajp.1350110105. PMID31979464. S2CID86729566.
Mendoza, S. P.; Mason, W. A. (1986). "Contrasting responses to intruders and to involuntary separation by monogamous and polygynous New World monkeys". Physiological Behavior. 38 (6): 795–801. doi:10.1016/0031-9384(86)90045-4. PMID3823197. S2CID26077383.
Robinson, J. G. (1979). "An analysis of the organization of vocal communication in the titi monkey Callicebus moloch". Zeitschrift für Tierzuchtung und Zuchtungsbiologie. 49 (4): 381–405. doi:10.1111/j.1439-0310.1979.tb00300.x. PMID115173.
Lawler, R. R.; Ford, S. M.; Wright, P. C.; Easley, S. P. (2006). "The locomotor behavior of Callicebus brunneus and Callicebus torquatus". Folia Primatologica. 77 (3): 228–239. doi:10.1159/000091232. PMID16612097. S2CID6892953.
Tirado Herrera, E. R.; Heymann, E. W. (2004). "Does mom need more protein? Preliminary observations on differences in diet composition in a pair of red titi monkeys, Callicebus cupreus". Folia Primatologica. 75 (3): 150–153. doi:10.1159/000078304. PMID15240979. S2CID40269938.
Mendoza, S. P.; Reeder, D. M.; Mason, W. A. (2002). "Nature of proximate mechanisms underlying primate social systems: simplicity and redundancy". Evolutionary Anthropology. 11 (1): 112–116. CiteSeerX10.1.1.571.792. doi:10.1002/evan.10071. S2CID29705787.
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Cubicciotti, D. D.; Mason, W. A. (1978). "Comparative studies of social behavior in Callicebus and Saimiri: heterosexual jealousy behavior". Behavioral Ecology and Sociobiology. 3 (3): 311–322. doi:10.1007/BF00296316. S2CID29148310.
Anzenberger, G.; Mendoza, S. P.; Mason, W. A. (1986). "Comparative studies of social behavior in Callicebus and Saimiri: behavioral and physiological responses of established pairs to unfamiliar pairs". American Journal of Primatology. 11 (1): 37–51. doi:10.1002/ajp.1350110105. PMID31979464. S2CID86729566.
Mendoza, S. P.; Reeder, D. M.; Mason, W. A. (2002). "Nature of proximate mechanisms underlying primate social systems: simplicity and redundancy". Evolutionary Anthropology. 11 (1): 112–116. CiteSeerX10.1.1.571.792. doi:10.1002/evan.10071. S2CID29705787.
Ferrari, S.; Iwanga, S.; Messias, M.; Ramos, E.; Ramos, P.; da Cruz Neto, E.; Coutinho, P. (2000). "Titi monkeys (Callicebus spp., Atelidae: Platyrrhini) in the Brazilian state of Rondônia". Primates. 41 (2): 229–234. doi:10.1007/BF02557805. S2CID33425235.
Mendoza, S. P.; Mason, W. A. (1986). "Contrasting responses to intruders and to involuntary separation by monogamous and polygynous New World monkeys". Physiological Behavior. 38 (6): 795–801. doi:10.1016/0031-9384(86)90045-4. PMID3823197. S2CID26077383.
Lawler, R. R.; Ford, S. M.; Wright, P. C.; Easley, S. P. (2006). "The locomotor behavior of Callicebus brunneus and Callicebus torquatus". Folia Primatologica. 77 (3): 228–239. doi:10.1159/000091232. PMID16612097. S2CID6892953.
Robinson, J. G. (1979). "Vocal regulation of use of space by groups of titi monkeys Callicebus moloch". Behavioral Ecology and Sociobiology. 5: 1–15. doi:10.1007/bf00302691. S2CID30990441.
Crandlemire-Sacco, J. (1988). "An ecological comparison of two sympatric primates: Saguinus fuscicollis and Callicebus moloch of Amazonian Peru". Primates. 29 (4): 465–475. doi:10.1007/bf02381134. S2CID22332355.
Tirado Herrera, E. R.; Heymann, E. W. (2004). "Does mom need more protein? Preliminary observations on differences in diet composition in a pair of red titi monkeys, Callicebus cupreus". Folia Primatologica. 75 (3): 150–153. doi:10.1159/000078304. PMID15240979. S2CID40269938.
Felton, A.; Felton, A. M.; Wallace, R. B.; Gómez, H. (2006). "Identification, behavioral observations, and notes on the distribution of the titi monkeys Callicebus modestus Lönnberg, 1939 and Callicebus olallae, Lönnberg 1939". Primate Conservation. 20: 41–46. doi:10.1896/0898-6207.20.1.41. S2CID86779155.