McLarney, William J.
Richard D. Irwin, 1961
Buku Teks
Hicks, Herbert G.
McGraw-Hill Kogakusha, 1974
Buku Teks
Bernard, Chester I.
Harvard University Press , 1966
Buku Teks
Mahoney, Thomas A.
Prentice-Hall, 1961
Buku Teks
edited by Bernard M. Bass and Samuel D. Deep
Prentice-Hall, 1970
Buku Teks