https://libraryapp.uomustansiriyah.edu.iq/ebooks.php?a=view&recid=2003
https://libraryapp.uomustansiriyah.edu.iq/ebooks.php?a=view&recid=2005
https://libraryapp.uomustansiriyah.edu.iq/ebooks.php?a=view&recid=2007
https://libraryapp.uomustansiriyah.edu.iq/ebooks.php?a=view&recid=2178
https://libraryapp.uomustansiriyah.edu.iq/ebooks.php?a=view&recid=2048