Teichert, Pedro C.M., author
Bureau of Business Research Mississippi University , 1959
Buku Teks
Powelson, John P., author
McGraw-Hill , 1964
Buku Teks
Powelson, John P., author
McGraw-Hill , 1964
Buku Teks
Buku Teks
edited by James Petras
John Wiley & Sons, 1973
Buku Teks