Wiraphong Koosakulkunakone. 1997. Weatherability of hindered amine UV stabilized ethylene-propylene copolymer. Field of Study Petrochemistry and Polymersciene, Chulalongkorn University;
Wiraphong Koosakulkunakone. (1997) Weatherability of hindered amine UV stabilized ethylene-propylene copolymer . Chulalongkorn University/Bangkok.
Wiraphong Koosakulkunakone. Weatherability of hindered amine UV stabilized ethylene-propylene copolymer. . Bangkok:Chulalongkorn University, 1997.
Wiraphong Koosakulkunakone. (1997) Weatherability of hindered amine UV stabilized ethylene-propylene copolymer . Chulalongkorn University/Bangkok.