(3GdMOhO aj Gdabg GdESdGej h eG Ydjg GdYed aj bGfhf GdYbhHGJ GdEeGQGJj (B/ s - (3CHh QVjI, eGLO eMeOs ((3GdchjJ (B:s (3ecJHI GdadGM,s, 1997)
Keywords: (3Gdabg GdESdGej(B. s; (3GdMOhO (B((3TQjYI ESdGejI(B). s; (3GdYbhHGJ(B. s