The authority shall have the power and is authorized to provide by resolution for the issuance of negotiable revenue bonds for the purpose of paying all or any part of the cost, as defined in this part, of any one or a combination of projects. The authority may sell bonds in such manner and for such price as it may determine to be for the best interest of the authority. The principal and interest of bonds shall be payable solely from a special fund provided for in Code Section 12-3-374. The bonds of each issue shall be dated, shall bear interest at the lowest attainable rate, payable in such medium of payment as to both principal and interest as may be determined by the authority, and may be made redeemable before maturity, at the option of the authority, at such price or prices and under such terms and conditions as may be fixed by the authority in the resolution providing for the issuance of the bonds.