Nawee Farkrachang และ Nuanphun Chantarasiri. (1997) Synthesis of some multifunctional crosslinking agents for polyurethane. Chulalongkorn University:ม.ป.ท.Nawee Farkrachang และ Nuanphun Chantarasiri. 1997. Synthesis of some multifunctional crosslinking agents for polyurethane. ม.ป.ท.:Chulalongkorn University;Nawee Farkrachang และ Nuanphun Chantarasiri. Synthesis of some multifunctional crosslinking agents for polyurethane. ม.ป.ท.:Chulalongkorn University, 1997. Print.