Komputer & tugas-tugas bisnis / ditulis oleh Douglas Downing Strategic physical distribution management / Douglas M. Lambert, James R. Stock Starting and managing the small business / Arthur H. Kuriloff, John M. Hemphill, Douglas Cloud Komputer & tugas - tugas bisnis / ditulis oleh Douglas Downing ; alih bahasa, Soesanto Boedidarmo Ethics in a business society / by Marquis W. Childs and Doyglas Cater Basic statistics for business & economics [sumber elektronik] / Douglas A. Lind, William G. Marchal, Samuel A. WathenNew standard encyclopedia / editor in chief, Douglas W. DowneyIn The Fullness of Time; the memoirs of Paul H. Douglas /Paul H. DouglasENSIKLOPEDI Alkitab masa kini / penyunting, J.D. DouglasSupply ecosystems : interconnected, interdependent and cooperative operations, supply and contract management / Douglas Kinnis Macbeth