(3GdEfUGa ajeG Hjf YdeGA GdeSdejf aj bQGAI (B"(3HSe Gddg GdQMef GdQMje(B" (3aj aGJMI GdcJGH ef GdGNJdGa (B/s - (3GdbQWHj , jhSa Hf YHO Gddg Hf eMeO YHO GdHQ,s 368-463 (3g`(B.s; (3GdLjdGfj, YHO GddWja Hf eMeOs ((3GdQjGV (B:s (3CVhGA GdSda,s, 1997)
Keywords: (3GdbQBfs -- (3JLhjOs