Weber, Robert L., author
McGraw-Hill, 1959
Buku Teks
Fuller, Harry J., author
Holt Rinehart and Winston, 1963
Buku Teks
Marius, Richard, author
McGraw-Hill, 1988
Buku Teks
Carlson, Arthur E., author
South Western, 1986
Buku Teks
Sears, Francis W. (Francis Weston), 1898-1975, author
Addison-Wesley, 1960
Buku Teks