. (2009). . University Textbooks; Research and Writting, 14(22), 49-72.
. "", University Textbooks; Research and Writting, 14, 22, 2009, 49-72.
. (2009). '', University Textbooks; Research and Writting, 14(22), pp. 49-72.
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. . University Textbooks; Research and Writting. 2009;14(22):49-72 (In Persian).
