(3GfLjd eJi (B/ s - (3aQGfS, Q(B. (3J(B.s; (3fcdS fSjes; (3GOjHI TcQis ((3GdbGgQI (B: s (3OGQ GdKbGaI GdYQHjI , s, 1990)
Keywords: (3GdYgO GdLOjOs; (3GdOjf GdeSjMis; (3GfLjd eJis