https://book.pbru.ac.th/cgi-bin/koha/opac-search.pl?q=ccl=an%3A60339&sort_by=relevance&format=rss 2 0 50 ISBN: https://book.pbru.ac.th/cgi-bin/koha/opac-detail.pl?biblionumber=35540 Illinois : Assocition for educational Communications & technology,

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]]> https://book.pbru.ac.th/cgi-bin/koha/opac-detail.pl?biblionumber=35540 ISBN: https://book.pbru.ac.th/cgi-bin/koha/opac-detail.pl?biblionumber=44334 New Jersey : Education technology publications, 2000

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