Wipayu Booncharunsook. 1996. Development of low cost biodegradable polyurethane packaging material. Graduate School, Chulalongkorn University;
Wipayu Booncharunsook. (1996) Development of low cost biodegradable polyurethane packaging material . Chulalongkorn University/Bangkok.
Wipayu Booncharunsook. Development of low cost biodegradable polyurethane packaging material. . Bangkok:Chulalongkorn University, 1996.
Wipayu Booncharunsook. (1996) Development of low cost biodegradable polyurethane packaging material . Chulalongkorn University/Bangkok.