243.66 Payment of bonds.—Revenue bonds issued under ss. 243.50-243.77 are not a debt or liability of the authority, any municipality, the state, or any political subdivision thereof, and are not a pledge of the faith and credit of the state, the authority, any municipality, or any political subdivision thereof, but are payable solely from revenues of the authority pertaining to the project relating to the issue; payments by participating institutions of higher education, banks, insurance companies, or others under letters of credit or purchase agreements; investment earnings from funds or accounts maintained under the bond resolution; insurance proceeds; loan funding deposits; proceeds of sales of education loans; proceeds of refunding obligations; and fees, charges, and other revenues of the authority from the project. All revenue bonds must contain on the face thereof a statement to the effect that neither the authority nor any municipality, the state, or any political subdivision thereof is obligated to pay the bond or the interest thereon except from revenues of the project or the portion thereof for which they are issued, and that neither the faith and credit nor the taxing power of the authority, any municipality, the state, or any political subdivision thereof is pledged to the payment of the principal of or the interest on the bonds. The issuance of revenue bonds under ss. 243.50-243.77 may not directly, indirectly, or contingently obligate the authority, any municipality, the state, or any political subdivision thereof to levy or to pledge any form of taxation therefor or to make any appropriation for their payment.