Wanna Rung-Aphinya. 1999. Effect of viscosity modifier and base oil composition on the lubricating properties of four-stroke motorcycles. Field of Study Petrochemistry and Polymer Scince, Chulalongkorn University;
Wanna Rung-Aphinya. (1999) Effect of viscosity modifier and base oil composition on the lubricating properties of four-stroke motorcycles . Chulalongkorn University/Bangkok.
Wanna Rung-Aphinya. Effect of viscosity modifier and base oil composition on the lubricating properties of four-stroke motorcycles. . Bangkok:Chulalongkorn University, 1999.
Wanna Rung-Aphinya. (1999) Effect of viscosity modifier and base oil composition on the lubricating properties of four-stroke motorcycles . Chulalongkorn University/Bangkok.