Urawan Oengaew. 1999. Improvement of local phenolic resin coated sand for shell molding. Graduate School, Chulalongkorn University;
Urawan Oengaew. (1999) Improvement of local phenolic resin coated sand for shell molding . Chulalongkorn University/Bangkok.
Urawan Oengaew. Improvement of local phenolic resin coated sand for shell molding. . Bangkok:Chulalongkorn University, 1999.
Urawan Oengaew. (1999) Improvement of local phenolic resin coated sand for shell molding . Chulalongkorn University/Bangkok.