(3QhVI GdfGXQ hLfI GdefGXQ aj CUhd Gdabg Ydi ePgH GdEeGe CMeO Hf MfHd (B/s - (3GHf bOGeI, YHO Gddg Hf CMeO,s 541-620 (3g`(B.s; (3GdcGJH, Sja GdOjf YHO GdbGOQs ((3HjQhJ (B:s (3OGQ GdcJGH GdYQHj,s, 1987)
Keywords: (3Gdabg GdMfHdjs; (3CUhd Gdabg GdESdGejs