Akaraphol Petchmala. 2008. Biodiesel from purified palm oil and palm fatty acid in supercritical methanol with sulfated zirconia catalyst. Field of Study Chemical Engineering, Chulalongkorn University;
Akaraphol Petchmala. (2008) Biodiesel from purified palm oil and palm fatty acid in supercritical methanol with sulfated zirconia catalyst . Chulalongkorn University/Bangkok.
Akaraphol Petchmala. Biodiesel from purified palm oil and palm fatty acid in supercritical methanol with sulfated zirconia catalyst. . Bangkok:Chulalongkorn University, 2008.
Akaraphol Petchmala. (2008) Biodiesel from purified palm oil and palm fatty acid in supercritical methanol with sulfated zirconia catalyst . Chulalongkorn University/Bangkok.