In the event of default in payment of the principal of or interest on any bonds of the authority or in any agreements of the authority made as a part of the contract under which the bonds were issued, whether contained in the resolutions authorizing the bonds or in any trust indenture, mortgage, or deed of trust executed as security therefor, said payment or agreement may be enforced by suit, mandamus, the appointment of a receiver in equity or by foreclosure of any mortgage and deed of trust, or any one or more of said remedies.
SDCL 1-16A-49