(3eMGVQGJ aj GdbGfhf GdOhdj GdNGU(B:s (3GdENJUGU GdbVGFj GdOhdj h JfajP GdCMcGe GdCLfHjI(B/s - (3LeGd eMehO GdcQOjs ((3eUQ(B:s, 1997)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
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Keywords: (3GdbGfhf GdOhdj GdNGUs