Sampson, Robert C., author
McGraw-Hill , 1965
Buku Teks
Massie, Joseph L., author
Prentice-Hall, 1985
Buku Teks
Foster, Douglas
Longman , 1972
Buku Teks
Del mar, Donald
McGraw-Hill, 1985
Buku Teks
Walters, Jack Edward
Littlefield, Adams, 1959
Buku Teks