Taxes for the payment of general obligation bonds must be levied in accordance with chapter 76 , and the bonds are payable from the levy of unlimited ad valorem taxes on all the taxable property within the city through its debt service fund authorized by section 384.4 . [C97, §852 – 855, 912; S13, §741-w2, 758-b, 849-j, 850-c, -e, -f, 912-a, 1056-a43, -a63, -a64, -a65; SS15, §840-g, -p, 997-c; C24, 27, 31, §5793 – 5795, 5800 – 5804, 5878 – 5881, 5902, 6103, 6261 – 6263, 6265, 6594, 6595, 6608, 6746; C35, §5793 – 5795, 5800 – 5804, 5878 – 5881, 5902, 6103, 6261 – 6263, 6265, 6578-b1, 6594, 6595, 6608, 6746; C39, § 5793 – 5795, 5800 – 5804, 5878 – 5881, 5902, 6103, 6261 – 6263, 6265, 6578.1, 6594, 6595, 6608, 6746; C46, 50, §370.7 – 370.9, 370.15 – 370.19, 381.5 – 381.8, 384.3, 395.25, 408.10 – 408.14, 408.16, 416.104, 416.122, 416.123, 416.138, 420.57; C54, 58, §368.16, 368.29, 368.32, 370.7, 381.7, 384.3, 390.14, 395.25, 404.18, 408.17; C62, 66, §368.16, 368.29, 368.32, 370.7, 381.7, 384.3, 390.13, 395.25, 404.19, 408.17; C71, 73, §368.16, 368.29, 368.32, 370.7, 378A.11, 381.7, 384.3, 390.13, 395.25, 404.19, 408.17; C75, 77, 79, 81, §384.32 ] Referred to in §37.6 , 357E.11A , 389.4 , 390.5