Julalak Kaewwangsakoon และ Sajee Pianskool. (2010) Higher derivations and jordan higher derivations of Г-rings. Chulalongkorn University:ม.ป.ท.Julalak Kaewwangsakoon และ Sajee Pianskool. 2010. Higher derivations and jordan higher derivations of Г-rings. ม.ป.ท.:Chulalongkorn University;Julalak Kaewwangsakoon และ Sajee Pianskool. Higher derivations and jordan higher derivations of Г-rings. ม.ป.ท.:Chulalongkorn University, 2010. Print.