An increase or reduction of the capital stock of any association is not valid unless approved by the stockholders of the association at a meeting called for that purpose. Notice of the time and place of the meeting stating its object and the amount to which it is proposed to increase or reduce the capital stock of the association must be served personally or by registered or by certified mail on each stockholder of the association at least thirty days prior to the time set for such meeting. The notice must be given to stockholders whose places of residence are unknown or who are not residents of this state by publication of the notice at least once prior to the meeting in a legal newspaper of the county in which the principal office of the association is     situated. A vote in favor of an increase in capital stock is not effective until the proceedings of the meeting showing the names of all of the stockholders voting for the increase and the amount of stock owned by each have been entered upon the records of the association.