<?xml version="1.0" encoding="UTF-8"?>
<xml><bibliography><APA>Wiwat Wanicharpichat. (2012) Explicit Inverse of a Doubly Companion Matrix. &lt;i&gt;Thai Journal of Science and Technology&lt;/i&gt;, &lt;i&gt;1&lt;/i&gt;(1), 55-60.</APA><Chicago>Wiwat Wanicharpichat. "Explicit Inverse of a Doubly Companion Matrix". Thai Journal of Science and Technology  1 (2012):55-60.</Chicago><MLA>Wiwat Wanicharpichat. Explicit Inverse of a Doubly Companion Matrix. Thammasat University:ม.ป.ท. 2012.</MLA></bibliography></xml>
