Hubbard, George U., author
Van Nostrand Reinhold, 1981
Buku Referensi
Date, C.J., author
Addison-Wesley, 1981
Buku Teks
Date, C.J., author
Addison-Wesley, 1990
Buku Teks
Date, C.J., author
Addison-Wesley, 1981
Buku Teks
Elmasri, Ramez, author
Benjamin Cummings, 1989
Buku Teks