Document Type : Translation
. (2003). . Mathematical Culture and Thought, 22(1), 35-38.
. "", Mathematical Culture and Thought, 22, 1, 2003, 35-38.
. (2003). '', Mathematical Culture and Thought, 22(1), pp. 35-38.
, "," Mathematical Culture and Thought, 22 1 (2003): 35-38,
. . An Expository Journal of the Iranian Mathematical Society. 2003;22(1):35-38 (In Persian).
