Bloom, Lynn Z.
D.C. Health and Company, 1984
Buku Teks
Day, Susan
McGraw-Hill, 1988
Buku Teks
Richard E. Ferdig, Kristine E. Pytash, editors
Information Science Reference, 2014
Buku Referensi
Goldman, Stephen H.
Houghton Miffiln, 1986
Buku Teks
Spaventa, Lou J.
McGraw-Hill, 2001
Buku Teks