Narawut Thongphoem. 2007. Waste from biodiesel production by transesterification using sulfuric acid and potassium hydroxide as catalysts. Field of Study Chemical Engineering, Chulalongkorn University;
Narawut Thongphoem. (2007) Waste from biodiesel production by transesterification using sulfuric acid and potassium hydroxide as catalysts . Chulalongkorn University/Bangkok.
Narawut Thongphoem. Waste from biodiesel production by transesterification using sulfuric acid and potassium hydroxide as catalysts. . Bangkok:Chulalongkorn University, 2007.
Narawut Thongphoem. (2007) Waste from biodiesel production by transesterification using sulfuric acid and potassium hydroxide as catalysts . Chulalongkorn University/Bangkok.