CP violating asymmetries of b quarks and leptons in e(+)e(-)-> t(t)over-bar and supersymmetry

The distributions of the single decay b-quarks and leptons from e(+)e(-) -- > t(t)over-bar assuming CP violation are reviewed. Different asymmetries, s ensitive independently to CP violation in the production and in the decay, and sensitive to the real and imaginary parts of d(gamma) and d(Z) are defi ned. The analytic expressions are general and independent on the model of C P violation. In most of them all phase space integrations are fulfilled ana lytically. Numerical results in the MSSM with complex couplings are present ed.