Author
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Vahidi, P. (1992). . Rahyaft, 2(3), -.
Vahidi, P. . "", Rahyaft, 2, 3, 1992, -.
Vahidi, P. (1992). '', Rahyaft, 2(3), pp. -.
P. Vahidi, "," Rahyaft, 2 3 (1992): -,
Vahidi, P. . Rahyaft, 1992; 2(3): -.