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Ansari, M.A.A.: Awareness and use of OPACs in five Delhi libraries (2008)
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Thorhauge, J.: OPAC development research colloquium (1994)
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Yeates, R.: Managing access to the digital library : the CaseLibrary project (1997)
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Hashim, L.B.: research on the use of OPAC and its implications for libraries in Malaysia (1993)
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Kock, M.d.: Remote users of an online public access catalogue (OPAC) (1993)
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