Yates, Rochelle
Library Professional Publications, 1986
Buku Teks
Bien, Thomas
Wisdom Publications, 2006
Buku Teks
Loughary, John W.
McGraw-Hill, 1979
Buku Teks
McLeod, John
McGraw-hill Open University press, 2012
Buku Teks
Pitman, Randy
G.K. Hall & Co., 1992
Buku Teks