(3TQM ZQGFH GdYGde GdMOjK(B: (3cja jaYdhf Pdc (B/ s - (3cGQhdjf ShJhfs; (3eGLO WjahQs ([S.N] : (3GdOGQ GdYQHjI ddYdhe , s, 1991)
Keywords: (3GdJKbja GdPGJis; (3GdKbGaI GdPGJjIs; (3GdeYQaIs