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Evaluation of library and information services
Aslib, 2000
Buku Teks
CICI directory of information products and services 1990
Longman, 1990
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Access : Asia's Newspaper on Electronic Information Products & Services
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Majalah, Jurnal, Buletin
Heldman, Robert K.
Information telecommunications: networks, products and services/Robert K. Heldman
McGraw-Hill , 1994
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Slater, Ken
Information security in financial services
Stockton Press, 1991
Buku Teks