The commission shall have power to employ and fix the compensation of such experts, stenographers, and assistants as may be deemed necessary to carry out the work of the commission, but due diligence shall be exercised by the commission to enlist such voluntary assistance as may be available from citizens, research organizations, and other agencies in Pennsylvania or elsewhere, generally recognized as qualified to aid the commission with information as to existing conditions or advice as to possibilities in governmental economies or reorganization. The Legislative Reference Bureau, The Bureau of Statistics of the Department of Internal Affairs, and other agencies of the Commonwealth, as well as all local governments within the Commonwealth, shall give the commission, on request, such information and assistance as may be reasonably accessible.