Meier, Gerald M., author
Oxford University Press, 1979
Buku Teks
W.W Norton and Company, 1992
Buku Teks
Walinsky, Louis J.
McGraw-Hill , 1963
Buku Teks
Meyers, Frederick H., author
Richard D. Irwin, 1951
Buku Teks
Haver, Cecil B.
Cecil B, Haver, 1961
Buku Teks