The Council may make provision by ordinance for:
(a) the form and method of enactment and publication of its ordinances and resolutions, provided that no ordinance or resolution shall contain more than one subject which shall be set forth in its title;
(b) the procedure for making public improvements and levying assessments, including the procedure for combining two or more public improvements, and the levying of assessments therefor, in one proceeding, if the Council finds that it will be economical and practical to undertake such improvements jointly;
(c) the making, advertising and awarding of contracts and of alterations or modifications of contracts, including the determination of when formal bidding shall be required, the method of such bidding and the matters to be exempted from such bidding;
(d) the purchase or the sale or disposal of municipal property;
(e) the establishment of special provisions respecting the designation of depositories, types of accounts, and the investment of public monies; and
(f) such other general regulations as the Council may deem necessary including the use of an official seal.
Ordinances may be revised, codified, rearranged and published in book form under appropriate titles, chapters and sections, and such revisions and codification may be made in one ordinance comprising one or more subjects. The publication of such revision and codification in book form as aforesaid shall be held sufficient publication of the ordinance or ordinances contained in such revision and codification. Any such publication of a revision or codification of ordinances in book form shall contain a certification by the President of Council and the Clerk-Treasurer of the correctness of such revision, codification and publication, and the book so published shall be received in evidence in any court for the purpose of proving the ordinance or ordinances therein contained, in the same manner and for the same purpose as the original book, ordinances, minutes or journals would be received.