1. Ali, Z. and M. Lowry, 1981 Early Maternal-Child Contact: Effect on Later Behavior. Developmental Medicine and Child Neurology 23: 337–345.
2. Aries, Philipe, 1962 Centuries of Childhood: A Social History of Family Life. New York: Vintage.
3. CEBRAP — Centro Brasileiro de Analise e Planejamento, Nova Serie;E Berquo,1984
4. Bourne, Richard, and Eli Newberger (eds.) 1979 Critical Perspectives on Child Abuse and Neglect. Lexington, MA: Lexington Books.
5. Chess, Stella, and Alexander Thomas, 1982 Infant Bonding: Mystique and Reality. American Journal of Orthopsychiatry 52(2): 213–222.