Kellmer M. and Pringlem( 1982). Children whoare 'vulnerable' or 'at risk'. In: The needs ofchildren, 2nd Ed Hutchinson Publishing Co107-147
2.
Wallace H.M., Gold E.M. and Oglesby A.C. (1982). In: Maternal and health practices, problems, resources and methods of delivery, 2nd Ed, John Wiley and Sons, New York29
