(3MVQI GdeMJQe (B( (3HGdShjOjI(B?) / s - (3fLjH eMahXs ([S.N] : (3GdLGeYI GdGeQjcjI HGdbGgQI , s, 1991)
Keywords: (3GdGOH GdYQHis; (3GdbUI GdYQHjIs; (3fLjH eMahXs; (3MVQI GdeMJQe (B((3HGdShjOjI(B)s