Document Type : Opinion
. (2010). . Mathematical Culture and Thought, 29(1), 91-106.
. "", Mathematical Culture and Thought, 29, 1, 2010, 91-106.
. (2010). '', Mathematical Culture and Thought, 29(1), pp. 91-106.
, "," Mathematical Culture and Thought, 29 1 (2010): 91-106,
. . An Expository Journal of the Iranian Mathematical Society. 2010;29(1):91-106 (In Persian).