Baer, Werner, author
Richard D. Irwin, 1965
Buku Teks
Moore, Wilbert E. (Wilbert Ellis), author
Cornell University Press , 1951
Buku Teks
Mendes, Marcos, author
Academic Press, 2015
eBooks
Viner, Jocob
The Free Press , 1952
Buku Teks
Teichert, Pedro C.M., author
Bureau of Business Research Mississippi University , 1959
Buku Teks