You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query>
    <random>
      <page id="3130" ns="0" title="การเข้าสู่ระบบ FXGT เพื่อรับโบนัสในไม่กี่ขั้นตอน" />
      <page id="2442" ns="0" title="Pay 2008 Taxes - Some Questions In How To Go About Paying 2008 Taxes" />
    </random>
  </query>
</api>