       Springer, 2005,<br>
          ISBN: 0387950095,<br>
          LC: Q183.9.C733.
        </li>
        <li>
          Philip Davis, Philip Rabinowitz,<br>
          Methods of Numerical Integration,<br>
          Second Edition,<br>
          Dover, 2007,<br>
          ISBN: 0486453391,<br>
          LC: QA299.3.D28.
        </li>
        <li>
          Gerald Folland,<br>
          How to Integrate a Polynomial Over a Sphere,<br>
          American Mathematical Monthly,<br>
          Volume 108, Numbe