Darunee Tubthim. 1996. Synthetic diester lubricating base oils from palm oil. Graduate School, Chulalongkorn University;
Darunee Tubthim. (1996) Synthetic diester lubricating base oils from palm oil . Chulalongkorn University/Bangkok.
Darunee Tubthim. Synthetic diester lubricating base oils from palm oil. . Bangkok:Chulalongkorn University, 1996.
Darunee Tubthim. (1996) Synthetic diester lubricating base oils from palm oil . Chulalongkorn University/Bangkok.