(3GdMeGjI GdLfGFjI dCSQGQ GdOhdI (B:s (3OQGSI JMdjdjI JWHjbI dLQGFe GdNjGfI hGdJLSS ai GdJTQjY GdeUQi hGdebGQf (B/s - (3eLOj eMehO eMehO eMH MGaXs ({(3ecGf GdfTQ ZjQ eMOO(B}s {(3GdfTQ ZjQ eMOO(B}s, 1991)
. 646-605(3HHdjhLQGajG(B: (3UaMGJ(B.s
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Keywords: (3GdLQGFe GdeGSI HCef GdOhdIs; (3GdbGfhf GdLfGFj s