Document Type : Survey
. (2008). . Mathematical Culture and Thought, 26(2), 23-32.
. "", Mathematical Culture and Thought, 26, 2, 2008, 23-32.
. (2008). '', Mathematical Culture and Thought, 26(2), pp. 23-32.
, "," Mathematical Culture and Thought, 26 2 (2008): 23-32,
. . An Expository Journal of the Iranian Mathematical Society. 2008;26(2):23-32 (In Persian).
