Pritchett, C. Herman, author
McGraw-Hill, 1981
Buku Teks
Davies, J. Kenneth, 1925-, author
J.B. Lippincott, 1970
Buku Teks
Bone, Hugh A., author
McGraw-Hill, 1965
Buku Teks
Alpert, Geoffrey P., author
Sage, 1985
Buku Teks
Cole, George F., author
Brooks/Cole, 1986
Buku Teks