McGraw-Hill, 1996
Buku Referensi
Pollack, Seymour V., author
Holt Rinehart and Winston, 1983
Buku Teks
Norton, Peter, author
[publisher not identified], [date of publication not identified]
Buku Teks
Puotinen, C.J., author
Holt, Rinehart and Winston, 1983
Buku Teks
Katzan, Harry, Jr., author
Van Nostrand Reinhold , 1970
Buku Teks