/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Vaidya%2C%20%20Narendra%22&sort_by=relevance&format=rss 9 0 50 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=5444 By Vaidya, Narendra.

]]> Place hold on Problem solving in science. /

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]]> /cgi-bin/koha/opac-detail.pl?biblionumber=6474 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=6486 By Vaidya, Narendra.

]]> Place hold on Some aspects of Piaget's work and science teaching. /

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]]> Place hold on Researches On Adolescent Thought :

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]]> Place hold on Researches On Adolescent Thought :

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]]> /cgi-bin/koha/opac-detail.pl?biblionumber=17202 ISBN: /cgi-bin/koha/opac-detail.pl?biblionumber=23432 By Vaidya, Narendra.

]]> Place hold on The growth of logical thinking in science during adolescence /

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