Rutkowski, George B.
Lake Forest Glencoe 1992,
Buku Teks
Oleksy, Jerome E.
Prentice-Hall, 1981
Buku Teks
Rutkowski, George B.
Prentice-Hall, 1978
Buku Teks
Tokheim, Roger L., author
Jakarta Erlangga 1995,
Buku Teks
Gelder, Erich, author
Katalis, 1990
Buku Teks