Proof of the publication or posting of any notice, resolution, order or other matter in accordance with any of the provisions of this division may be made by affidavit of:
(a) The owner, publisher, printer, foreman or clerk of the newspaper in which the publication was made.
(b) The poster of the notice.
(c) A person having knowledge of the facts.
(Added by Stats. 1941, Ch. 79.)