Boyd, Harper W., Jr., author
Richard D. Irwin, 1958
Buku Teks
Grimshaw, Austin
McGraw-Hill, 1960
Buku Teks
Highsmith, Richard M., Jr.
J.B.Lippincott Co., 1963
Buku Teks
Wortman, Sterling
Johns Hopkins University Press, 1979
Buku Teks
Wyatt, Woodrow W.
D.C. Heath , 1967
Buku Teks