(3GdMjGI GdGLJeGYjI ai GdGfOdS (B:s (3YUQ OhdJi GdeQGHWjf hGdehMOjf (B/s - (3SYjO SjO GMeO GHh RjOs (1996)
Keywords: (3OhdI GdeQGHWjfs; (3OhdI GdehMOjfs