Samkhan Hobuntud และ Sajee Pianskool. (2008) Linear transformation subsemigroups of LR(V,W) admitting the structure of a semihyperring with zero. Chulalongkorn University:ม.ป.ท.Samkhan Hobuntud และ Sajee Pianskool. 2008. Linear transformation subsemigroups of LR(V,W) admitting the structure of a semihyperring with zero. ม.ป.ท.:Chulalongkorn University;Samkhan Hobuntud และ Sajee Pianskool. Linear transformation subsemigroups of LR(V,W) admitting the structure of a semihyperring with zero. ม.ป.ท.:Chulalongkorn University, 2008. Print.