(3bUI GdGOH aj eUQ(B/s - (3NaGLj,eMeO YHO GdefYe,s ((3HjQhJ,dHfGf(B:s (3OGQ GdLjd,s, 1992)
5 (3GLRGA aj (B2 (3eLdOs
Keywords: (3GdGOH GdYQHj(B-(3JGQjN(B-(3eUQs