1. Cox, J.L., Connor, Y., Kendell, R.E., (1982), Prospective Study of the Psychiatric Disorder of Childbirth, British Journal of Psychiatry, 140, 112–118.
2. Goldberg, D.P., Cooper, B., Eastwood, M.R., Kedward, H.B., Shephard, M., (1970), A Standardised Psychiatric Interview for use in Community Surveys, British Journal of Preventive & Social Medicine, 24, 18–23.
3. Hinde, R.A., (1977), Mother-Infant Separation and the Nature of Inter-Individual Relationships: Experiments with Rhesus Monkeys, Proceedings of the Royal Society, London, 196, 29–50.
4. Hinde, R.A., & McGinnes, L., (1977), Some Factors Influencing the Effects of Temporary Mother-Infant Separation: Some Experiments with Rhesus Monkeys, Psychological Medicine, 7, 197–212.
5. Kohut, H., (1971), The Analysis of the Self, Monograph number 4, The Psychoanalytic Study of the Child, International University Press, New York.