Tongkarn Keawtasi และ Soorathep Kheawhom. (2008) Energy saving in spray drying process. Chulalongkorn University:ม.ป.ท.Tongkarn Keawtasi และ Soorathep Kheawhom. 2008. Energy saving in spray drying process. ม.ป.ท.:Chulalongkorn University;Tongkarn Keawtasi และ Soorathep Kheawhom. Energy saving in spray drying process. ม.ป.ท.:Chulalongkorn University, 2008. Print.