(3GdeSJXQa ef GNHGQ GdLhGQi (B/ s - (3GMeO YHOGdaJGM JeGes; (3GdSjhWi (B: (3LdGd GdOjf GHhGdaVd YHOGdQMef Hf GHi HcQ Hf eMeO GdNVjQis ([S.N] : (3ecJHI GdJQGK GdGSdGei , s, 1989)
Keywords: (3GdGOH GdYQHis; (3GdeQCI ai GdGOHs; (3GdQbjb ai GdGOHs