https://unilibrary.zetech.ac.ke/cgi-bin/koha/opac-search.pl?q=ccl=Provider%3APearson%2C%20and%20holdingbranch%3AZER%20and%20au%3AKeown%2C%20Arthur%20J.%20and%20au%3APetty%2C%20J.%20William%20and%20holdingbranch%3AZER&sort_by=acqdate_dsc&format=rss 3 0 50 ISBN:9780733971426 | 0733971423 https://unilibrary.zetech.ac.ke/cgi-bin/koha/opac-detail.pl?biblionumber=3462 ]]> By Petty, J. William.
Upper Saddle River, N.J. : Pearson/Prentice Hall, 2006 .
xv,624p. : , Includes indexes. 26 cm..
9780733971426 | 0733971423

]]> https://unilibrary.zetech.ac.ke/cgi-bin/koha/opac-detail.pl?biblionumber=3462 ISBN:9780733993503 https://unilibrary.zetech.ac.ke/cgi-bin/koha/opac-detail.pl?biblionumber=2792 ]]> By Petty, J. William..
Australia : Pearson/Prentice Hall, 2006 .
xvii, 742 p. : , Includes indexes. 26 cm..
9780733993503

]]> https://unilibrary.zetech.ac.ke/cgi-bin/koha/opac-detail.pl?biblionumber=2792 ISBN:9780733993503 https://unilibrary.zetech.ac.ke/cgi-bin/koha/opac-detail.pl?biblionumber=2544 ]]> By Petty, J. William..
Upper Saddle River, N.J. : Pearson/Prentice Hall, 2009 .
xvii,742 p. : , Includes indexes. 26 cm..
9780733993503

]]> https://unilibrary.zetech.ac.ke/cgi-bin/koha/opac-detail.pl?biblionumber=2544