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<xml><bibliography><APA>Praphatson Veerapan และ Watcharee Khunkitti. (2011) In Vitro Antioxidant Activities of Essential Oils. &lt;i&gt;Isan Journal ofPharmaceutical Sciences&lt;/i&gt;, &lt;i&gt;7&lt;/i&gt;(3), 30-38.</APA><Chicago>Praphatson Veerapan และ Watcharee Khunkitti. "In Vitro Antioxidant Activities of Essential Oils". Isan Journal ofPharmaceutical Sciences  7 (2011):30-38.</Chicago><MLA>Praphatson Veerapan และ Watcharee Khunkitti. In Vitro Antioxidant Activities of Essential Oils. Faculty of Pharmaceutical Sciences KKU MSU UBU:ม.ป.ท. 2011.</MLA></bibliography></xml>
