(a) A municipality is empowered to issue:
(i) Revenue bonds to finance the undertaking of any urban renewal project under this chapter, including, without limiting the generality thereof, the payment of principal and interest upon any advances for surveys and plans or preliminary loans; and (ii) Refunding bonds for the payment or retirement of bonds previously issued by it.
(b) The bonds shall be made payable solely from the income, proceeds and revenues derived from the municipality's undertaking and carrying out of urban renewal projects under this chapter. However, payment of the bonds may be further secured by a pledge of any loan, grant or contribution from the federal government or other source in aid of any urban renewal projects of the municipality under this chapter.