The field theory dual to the Freedman-Townsend model of a non-Abelian anti-
symmetric tensor field is a nonlinear sigma model on the group manifold G.
This can be extended to the duality between the Freedman-Townsend model cou
pled to Yang-Mills fields and a nonlinear sigma model on a coset space G/H.
We present the supersymmetric extension of this duality and find that the
target space of this nonlinear sigma model is a complex coset space, G(C)/H
-C.