Holler, Frederick L.
Information sources of political science
ABC-Clio, 1981
 Buku Teks
Ching-Chih, Chen
Scientific and technical information sources
MIT Press, 1977
 Buku Teks
Information sources in the medical sciences
editors, L.T. Morton, S. Godbolt
Butterworth, 1984
 Buku Referensi
Wiggins, Gary, 1943-
Chemical information sources
McGraw-Hill, 1991
 Buku Teks SO
Wiggins, Gary, 1943-
Chemical information sources
McGraw-Hill, 1991
 Buku Teks SO