(3GdMOhO aj Gdabg GdESdGej heG Ydjg GdYed aj bGfhf GdYbhHGJ GdEeGQGJj dSfI (B1987 /s - (3CHh QNjI, eGLO eMeO eMehOs ((3GdchjJ (B:s (3ecJHI GdadGM ddfTQ hGdJhRjY,s, 1997)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
(3HHdjhLQGajI (B: (3U(B. 229-231.s
Keywords: (3GdMOhO (B((3TQjYI ESdGejI(B)s; (3bGfhf GdYbhHGJs -- (3GdEeGQGJ GdYQHjI GdeJMOIs