Beyer, Hans, author
[Publisher not identified], [Date of publication not identified]
Buku Teks
Solomons, T. W. Graham, author
John Wiley & Sons, 1992
Buku Teks
Fessenden, Ralph J., author
Wadsworth, 1979
Buku Teks
Shirley, David A., author
Holt Rinehart & Winston, 1964
Buku Teks
Pine, Stanley H., author
McGraw-Hill , 1987
Buku Teks