Stringy Quantum Cosmology of the Bianchi Class a

The quantum cosmology of the string effective action is considered within the context of the Bianchi class A minisuperspace. An exact unified solution is found for all Bianchi types and interpreted physically as a quantum wormhole. The solution is generalized for types $\mathrm{V}{\mathrm{I}}_0$ and $\mathrm{V}\mathrm{I}{\mathrm{I}}_0$. The Bianchi type IX wavefunction becomes increasingly localized around the isotropic Universe at large three-geometries.