(3GdCef GdZPGFj GdYQHj (B/ s - (3fOhI efJOi GdacQ GdYQHj Mhd GdCef GdZPGFj aj GdOhd GdYQHjI (B- (3GdYGde GdKGdK (B(8-10 (3THGW (B1986 : (3YeGf(B)s ((3YeGf (B:s (3efJOi GdacQ GdYQHj,s, 1986)
Keywords: (3GdRQGYIs; (3GdEbJUGOs; (3GdZPGAs; (3GdHdOGf GdYQHjIs