Gerstenfeld, Arthur
California Addison-Wesley Publishing , 1970
Buku Teks
Adair, John, author
Pan Books , 1988
Buku Teks
Aryana Satrya, author
Lambert Academic , 2010
Buku Teks
Laughlin, Fredric L., author
American Management Association, 2007
eBooks
Miro, Carmen A.
Frances Pinter Publ., 1980
Buku Teks