http://www.opac.lib.esn.ac.lk/cgi-bin/koha/opac-search.pl?q=ccl=an%3A2543&sort_by=acqdate_dsc&format=rss 2 0 50 ISBN:1572312165 http://www.opac.lib.esn.ac.lk/cgi-bin/koha/opac-detail.pl?biblionumber=50509 By Chappell, David .
Washington Microsoft Press 1996 .
xiv, 328p. 1572312165

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]]> http://www.opac.lib.esn.ac.lk/cgi-bin/koha/opac-detail.pl?biblionumber=50509 ISBN:81-7808-627-1 http://www.opac.lib.esn.ac.lk/cgi-bin/koha/opac-detail.pl?biblionumber=58794 By CHAPPELL, David.
Singapore Pearson Education Asia Pub . 2002 .
xiv, 348p. 81-7808-627-1

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