Steinberg, Charles Side, author
Hastings House, 1980
Buku Teks
Batley, Sue,a uthor
Chandos Publishing, 2007
Buku Teks
Bohl, Marilyn, author
Science Research Associates, 1971
Buku Teks
Freeman, Lee A, author
Information Science, 2005
Buku Teks
Freeman, Lee A., author
Information Science, 2005
Buku Teks