(3ChVGY GdYGde (B1993 :s (3JbQjQ deYgO hjQdOhJT Mhd GdJbOe fMh eLJeY bGHd ddHbGA (B/s - (3djSJQ CQ(B. (3HQGhf s; (3SJGQc djfOG(B;(3MLGL(B;(3GdUbGQ egfOS ehabs ((3YeGf (B:s (3OGQ GdHTjQddfTQ h GdJhRjY ,s, 1993)
Keywords: (3GdJdhK s; (3HQhGf(B,(3dSjJQ CQs; (3GdHjFIs