Nichapat Senso และ Piyasan Praserthdam. (2007) Effect of calcination atmosphere on surface defect of nano Zro[subscript 2] and its application as catalysts for biodiesel synthesis. Chulalongkorn University:ม.ป.ท.Nichapat Senso และ Piyasan Praserthdam. 2007. Effect of calcination atmosphere on surface defect of nano Zro[subscript 2] and its application as catalysts for biodiesel synthesis. ม.ป.ท.:Chulalongkorn University;Nichapat Senso และ Piyasan Praserthdam. Effect of calcination atmosphere on surface defect of nano Zro[subscript 2] and its application as catalysts for biodiesel synthesis. ม.ป.ท.:Chulalongkorn University, 2007. Print.