Chen, Ching-Chih
MIT Press, 1977
Buku Referensi
Gates, Jean Key
McGraw-Hill, 1994
Buku Referensi
American Library Association, 2018
Majalah, Jurnal, Buletin
Herner, Saul
Information Resources Press, 1980
Buku Referensi
Ayres, Eugene
McGraw-Hill Book Company, Inc., 1952
Buku Teks