(3GdehSjbjhf GdKdGKI hbUU CNQis - (3eMeO YWjg GdEHQGTis ((3GdEScfOQjI (B:s (3OGQ GdeYGQa(B,s, 1988)
(3eLehYI bUUjI ddCWaGd dSf (B8 (3aCcKQ (B.s
Keywords: (3bUU COHjI ddCWaGd(B.s