Umaporn Phongsataya. 2002. Effect of palm oil methyl ester on polycyclic aromatic hydrocarbons emission of diesel engine. Field of Study Petrochemistry and Palymer science, Chulalongkorn University;
Umaporn Phongsataya. (2002) Effect of palm oil methyl ester on polycyclic aromatic hydrocarbons emission of diesel engine . Chulalongkorn University/Bangkok.
Umaporn Phongsataya. Effect of palm oil methyl ester on polycyclic aromatic hydrocarbons emission of diesel engine. . Bangkok:Chulalongkorn University, 2002.
Umaporn Phongsataya. (2002) Effect of palm oil methyl ester on polycyclic aromatic hydrocarbons emission of diesel engine . Chulalongkorn University/Bangkok.