1. Altmann, J. 1980.Baboon Mothers and Infants. Harvard Univ. Press, Cambridge, Massachusetts.
2. Bakeman, R.;Gottman, J. M. 1986.Observing Interaction: An Introduction to Sequential Analysis. Cambridge Univ. Press, Cambridge.
3. Berman, C. M. 1980. Mother-infant relationships among free-ranging rhesus monkeys on Cayo Santiago: a comparison with captive pairs.Anim. Behav., 28: 860–873.
4. Berman, C. M. 1984. Variation in mother-infant relationships: traditional and non-traditional factors. In:Female Primates: Studies by Women Primatologists,Small,M. F. (ed.), Alan Liss, New York, pp. 17–36.
5. Berman, C. M.;Rasmussen, K. L. R.;Suomi, S. J. 1997. Group size, infant development and social networks in free-ranging rhesus monkeys.Anim. Behav., 53: 405–421.