Okla. Stat. tit. 70, § 70-23-123: This article provides alternative methods for things

authorized hereby.

The foregoing sections of this article shall be deemed to

provide an additional and alternative method for the doing of the

things authorized thereby, and shall be regarded as supplemental and

additional to powers conferred by other laws, and shall not be

regarded as in derogation of any powers now existing; provided,

however, that the issuance of revenue bonds or revenue refunding

bonds under the provisions of this article need not comply with the

requirements of any other law applicable to the issuance of bonds.