Whenever it appears to any state, county, or municipal agency or department that a special class of readers should be reached in order to obtain a wider range of bids, the department or agency may, in addition to the legal notices and advertising provided by law, place the advertising or notices in any recognized trade publication or construction journal published in the State of Arkansas reaching the special class. The rates regularly charged by the trade publication or construction journal may be paid by the state, county, or municipal department or agency.