(3hYGOJ GdPcQi HWQGFagG hZQGFHgG (B/ s - (3jhSa YRGdOjfs ([S.N] : (3OGQ GdGHOGY GdMOjK , s, 1989)
Keywords: (3GdGOH GdYQHis; (3GdePcQGJs; (3GdJQGLe GdPGJjIs; (3jhSa YRGdOjfs