Åberg, J. (2002). Live help system: An approach to intelligent help for web information systems.
Čikaški stil citiranja (17. izdanje)Åberg, Johan. Live Help System: An Approach to Intelligent Help for Web Information Systems. 2002.
MLA način citiranja (8. izdanje)Åberg, Johan. Live Help System: An Approach to Intelligent Help for Web Information Systems. 2002.
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