(3GSJjYGH GdYed ai GdbWGY GdUfGYi (B/ s - (3RjGO GdMGaXs ([S.N] : (3eYgO GdGfJeGA GdYQHi , s, 1981)
Keywords: (3GdYGde GdYQHis; (3GdYed hGdYeGds; (3GdYde hGdYdeGAs; (3GdUfGYIs; (3GdUfGYGJ GdJMhjdjIs; (3GdGMUGFjGJs