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<xml><bibliography><APA>Kappaput Thong-Innatra และผู้แต่งคนอื่นๆ. (2010) A Study of Biodiesel (Ethyl Ester) Production from Grease/Oil Rich Sludge through Acid-Catalytic Ethanol Transesterification and It. &lt;i&gt;Environment and Natural Resources Journal&lt;/i&gt;, &lt;i&gt;8&lt;/i&gt;(2), 31.</APA><Chicago>Kappaput Thong-Innatra และผู้แต่งคนอื่นๆ. "A Study of Biodiesel (Ethyl Ester) Production from Grease/Oil Rich Sludge through Acid-Catalytic Ethanol Transesterification and It". Environment and Natural Resources Journal  8 (2010):31.</Chicago><MLA>Kappaput Thong-Innatra และผู้แต่งคนอื่นๆ. A Study of Biodiesel (Ethyl Ester) Production from Grease/Oil Rich Sludge through Acid-Catalytic Ethanol Transesterification and It. คณะสิ่งแวดล้อมและทรัพยากรศาสตร์:ม.ป.ท. 2010.</MLA></bibliography></xml>
