Document Type : Opinion
. (2017). . Mathematical Culture and Thought, 35(2), 1-5.
. "", Mathematical Culture and Thought, 35, 2, 2017, 1-5.
. (2017). '', Mathematical Culture and Thought, 35(2), pp. 1-5.
, "," Mathematical Culture and Thought, 35 2 (2017): 1-5,
. . An Expository Journal of the Iranian Mathematical Society. 2017;35(2):1-5 (In Persian).
