Tongkarn Keawtasi. 2008. Energy saving in spray drying process. Faculty of Engineering, Chulalongkorn University;
Tongkarn Keawtasi. (2008) Energy saving in spray drying process . Chulalongkorn University/Bangkok.
Tongkarn Keawtasi. Energy saving in spray drying process. . Bangkok:Chulalongkorn University, 2008.
Tongkarn Keawtasi. (2008) Energy saving in spray drying process . Chulalongkorn University/Bangkok.