(3TNUjGJ hJjGQGJ (B/ s - (3GMeO NGdO YdGes ([S.N] : (3GdOGQ GdYQHjI ddcJGH , s, 1982)
Keywords: (3GdGOH GdYQHis; (3GHf NdOhfs; (3GdMLGHs; (3GOH GdQMdGJs; (3GHhGdYdGA GdeYQis; (3GHf gGfi GdGfOdSis; (3GdGOH GdJhfSis; (3GdTGHis; (3GdeLehYGJs; (3GdLGMX ,GHi YKeGf YeQh Hf HMQ Hf eMHhHs; (3GdWGgQ GdMOGOs