Document Type : Review
. (2011). . Mathematical Culture and Thought, 29(2), 31-40.
. "", Mathematical Culture and Thought, 29, 2, 2011, 31-40.
. (2011). '', Mathematical Culture and Thought, 29(2), pp. 31-40.
, "," Mathematical Culture and Thought, 29 2 (2011): 31-40,
. . An Expository Journal of the Iranian Mathematical Society. 2011;29(2):31-40 (In Persian).