Wagner, Gerald E., author
South-Western Publishing, 1984
Buku Teks
Booth, Taylor L., author
John Wiley & Sons, 1971
Buku Teks SO
Booth, Taylor L., author
John Wiley & Sons, 1978
Buku Teks SO
editor, Pau Fonseca i Casas
Information Science Reference, 2014
Buku Teks
Gear, Charles William, 1935-, author
McGraw-Hill, 1969
Buku Teks