1. Altmann, J., Hausfater, G., & Altmann, S. A. (1988). Determinants of reproductive success in Savannah baboons, Papio cynocephalus. In T. H. Clutton-Brock (Ed.), Reproductive success. Studies of individual variation in contrasting breeding systems (pp. 403–418). Chicago: Chicago University Press.
2. Anderson, D. P. (2001). Tree phenology and distribution, and their relation to chimpanzee social ecology in the Tai National Park, Côte d’Ivoire. University of Wisconsin-Madison.
3. Berger, J., & Cunningham, C. (1994). Bison: Mating and conservation in small populations. New York: Columbia University Press.
4. Boesch, C., & Boesch-Achermann, H. (2000). The chimpanzees of the Tai forest. Oxford: Oxford University Press.
5. Bygott, J. D. (1979). Agonistic behavior, dominance, and social structure in wild chimpanzees of the Gombe National Park. In D. A. Hamburg & E. R. McCown (Eds.), The great apes (pp. 405–427). Menlo Park, CA: Benjamin/Cummings.