Chatchai Tharawadee และ Bunjerd Jongsomjit. (2011) Modification of mgcl2-supported Ziegler-Natta catalyst with Lewis acids for ethylene copolymerization. Chulalongkorn University:ม.ป.ท.Chatchai Tharawadee และ Bunjerd Jongsomjit. 2011. Modification of mgcl2-supported Ziegler-Natta catalyst with Lewis acids for ethylene copolymerization. ม.ป.ท.:Chulalongkorn University;Chatchai Tharawadee และ Bunjerd Jongsomjit. Modification of mgcl2-supported Ziegler-Natta catalyst with Lewis acids for ethylene copolymerization. ม.ป.ท.:Chulalongkorn University, 2011. Print.