https://koha.ptec.edu.kh/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Carnegie%20Dale%22&sort_by=relevance&format=rss 3 0 50 ISBN: https://koha.ptec.edu.kh/cgi-bin/koha/opac-detail.pl?biblionumber=2096 By Carnegie Dale.

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]]> https://koha.ptec.edu.kh/cgi-bin/koha/opac-detail.pl?biblionumber=2096 ISBN: https://koha.ptec.edu.kh/cgi-bin/koha/opac-detail.pl?biblionumber=2242 By Carnegie Dale.

]]> Place hold on វិធីនិយាយក្នុងចំណោមមហាជន How to develop self-confidence and influence people by public speaking

]]> https://koha.ptec.edu.kh/cgi-bin/koha/opac-detail.pl?biblionumber=2242 ISBN: https://koha.ptec.edu.kh/cgi-bin/koha/opac-detail.pl?biblionumber=2345 By Carnegie Dale.

]]> Place hold on សិល្បៈចងមិត្ត បន្ទន់ចិត្ត អ្នកដទៃ - How to Win Friends and Influence People

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