Gilkey, Herbert T (1960), "New Air Heating Methods", New methods of heating buildings: a research correlation conference conducted by the Building Research Institute, Division of Engineering and Industrial Research, as one of the programs of the BRI fall conferences, November 1959., Washington: National Research Council (U.S.). Building Research Institute, p. 60, OCLC184031
Moore, June (13 December 1982), "Software Reviews, BusinessMaster II+, ledger for CP/M systems", InfoWorld, InfoWorld Media Group, Inc, p. 31, ISSN0199-6649