Bibliografia

Gonzalez (1987:13)

Sack (1981)

A. Goswami (2006)

Beauport (1994)

Bert Hellinger (1990)

López (2001)

Izturiz y Carpio (1998)

Roxanne Hiltz (2000)

Fred (2006)

Ruiz (1992)

Estephen R Covey (2000)