Document Type : Translation
. (2008). . Mathematical Culture and Thought, 27(1), 63-70.
. "", Mathematical Culture and Thought, 27, 1, 2008, 63-70.
. (2008). '', Mathematical Culture and Thought, 27(1), pp. 63-70.
, "," Mathematical Culture and Thought, 27 1 (2008): 63-70,
. . An Expository Journal of the Iranian Mathematical Society. 2008;27(1):63-70 (In Persian).
