Document Type : Translation
. (2010). . Mathematical Culture and Thought, 29(1), 107-111.
. "", Mathematical Culture and Thought, 29, 1, 2010, 107-111.
. (2010). '', Mathematical Culture and Thought, 29(1), pp. 107-111.
, "," Mathematical Culture and Thought, 29 1 (2010): 107-111,
. . An Expository Journal of the Iranian Mathematical Society. 2010;29(1):107-111 (In Persian).
