Document Type : Translation
. (2009). . Mathematical Culture and Thought, 28(1), 39-52.
. "", Mathematical Culture and Thought, 28, 1, 2009, 39-52.
. (2009). '', Mathematical Culture and Thought, 28(1), pp. 39-52.
, "," Mathematical Culture and Thought, 28 1 (2009): 39-52,
. . An Expository Journal of the Iranian Mathematical Society. 2009;28(1):39-52 (In Persian).