Usarat Ratanakamnoun. 2002. Photo-biodegradation of LDPE/banana starch films /Usarat Ratanakamnoun. Field of Study Applied Polymer Science and Textile Technology, Chulalongkorn University;
Usarat Ratanakamnoun. (2002) Photo-biodegradation of LDPE/banana starch films /Usarat Ratanakamnoun . Chulalongkorn University/Bangkok.
Usarat Ratanakamnoun. Photo-biodegradation of LDPE/banana starch films /Usarat Ratanakamnoun. . Bangkok:Chulalongkorn University, 2002.
Usarat Ratanakamnoun. (2002) Photo-biodegradation of LDPE/banana starch films /Usarat Ratanakamnoun . Chulalongkorn University/Bangkok.