<?xml version="1.0" encoding="UTF-8"?>
<xml><bibliography><APA>Thirawan Sitthai. (1994) A study of functionalization of chitosan. Mahidol University,:ม.ป.ท.</APA><Chicago>Thirawan Sitthai. 1994. A study of functionalization of chitosan. ม.ป.ท.:Mahidol University,;</Chicago><MLA>Thirawan Sitthai.  A study of functionalization of chitosan.  ม.ป.ท.:Mahidol University, 1994. Print.</MLA></bibliography></xml>
