Nattaporn Choksathian และ Manop Reodecha. (2009) An Alternative boiler fuel in a paper manufacturing plant. Chulalongkorn University:ม.ป.ท.Nattaporn Choksathian และ Manop Reodecha. 2009. An Alternative boiler fuel in a paper manufacturing plant. ม.ป.ท.:Chulalongkorn University;Nattaporn Choksathian และ Manop Reodecha. An Alternative boiler fuel in a paper manufacturing plant. ม.ป.ท.:Chulalongkorn University, 2009. Print.