(3GdHhGHI GdShOGA UaMGJ ef JGQjN GdGNhGf GdeSdejf (B/ s - (3GMeO QGFas ([S.N] : (3GdRgQGA ddGYdGe GdYQHi , s, 1989)
Keywords: (3GdGMhGd GdSjGSjIs; (3GdGNhGf GdeSdehfs; (3LeGd YHOGdfGUQs