(3JGQjN dHfGf(B: (3efP GbOe GdYUhQ GdJGQjNjI Gdi YUQfG GdMGVQ (B/ s - (3fbhdG RjGOIs; (3ajdjH MJis; (3GfjS aQjMIs; (3LHQGFjd LHhQs ([S.N] : (3OGQ GdKbGaI GdYQHjI , s, 1978)
Keywords: (3GdJGQjNs; (3dHfGfs; (3dHfGf GdbOjes; (3GdeSjMjhf ai dHfGfs