<?xml version="1.0" encoding="UTF-8"?>
<xml><bibliography><APA>Sopida Sriviriyakul และผู้แต่งคนอื่นๆ. (2010) Preparation of polyethyleneimine-coated silica gel for adsorption of formaldehyde in water. Chulalongkorn University:ม.ป.ท.</APA><Chicago>Sopida Sriviriyakul และผู้แต่งคนอื่นๆ. 2010. Preparation of polyethyleneimine-coated silica gel for adsorption of formaldehyde in water. ม.ป.ท.:Chulalongkorn University;</Chicago><MLA>Sopida Sriviriyakul และผู้แต่งคนอื่นๆ.  Preparation of polyethyleneimine-coated silica gel for adsorption of formaldehyde in water.  ม.ป.ท.:Chulalongkorn University, 2010. Print.</MLA></bibliography></xml>
