gic, Programming and Prolog (2ed)</a></li>
<li><a rel="nofollow" href="http://www.j-paine.org/prolog/mathnotes/files/pms/pms.html">Introduction to Prolog for Mathematicians</a></li>
<li><a rel="nofollow" href="http://www.learnprolognow.org/">Learn Prolog Now!</a></li>
<li><a rel="nofollow" href="http://cs.union.edu/~striegnk/courses/nlp-with-prolog/html/">Natural Language Processing Techniques in Prolog</a></li>
</ul>
<p><strong>PostgreSQL</strong></p>
<ul><a rel="nofollow" href="http://cs.union.edu/~strieg