Document Type : Translation
. (2008). . Mathematical Culture and Thought, 26(2), 33-44.
. "", Mathematical Culture and Thought, 26, 2, 2008, 33-44.
. (2008). '', Mathematical Culture and Thought, 26(2), pp. 33-44.
, "," Mathematical Culture and Thought, 26 2 (2008): 33-44,
. . An Expository Journal of the Iranian Mathematical Society. 2008;26(2):33-44 (In Persian).