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Sarawut Phuapong. 2007. Some algebraic properties of O (In). Field of Study Mathematics, Chiang Mai University;
Sarawut Phuapong. (2007) Some algebraic properties of O (In) . Chiang Mai University/Chiang Mai.
Sarawut Phuapong. Some algebraic properties of O (In). . Chiang Mai:Chiang Mai University, 2007.
Sarawut Phuapong. (2007) Some algebraic properties of O (In) . Chiang Mai University/Chiang Mai.