Ruanglak Jongchotinon. 2007. Linear transformation semigroups admitting nearring structure. Field of Study Mathematics, Chulalongkorn University;
Ruanglak Jongchotinon. (2007) Linear transformation semigroups admitting nearring structure . Chulalongkorn University/Bangkok.
Ruanglak Jongchotinon. Linear transformation semigroups admitting nearring structure. . Bangkok:Chulalongkorn University, 2007.
Ruanglak Jongchotinon. (2007) Linear transformation semigroups admitting nearring structure . Chulalongkorn University/Bangkok.