(3eHGOF Yde GdUNhQ (B/ s - (3JjQJjd, L (B. (3Os; (3eMeO ceGd GdOjf GdYbGOs; (3SjO eMeO YeGQI (B((3eJQLe(B)s ([S.N] : (3OGQ GdacQ GdYQHi , s, 1962)
Keywords: (3GdYdes; (3GdLjhdhLjGs; (3GdUNhQs