(3GdSjGSI GdEbJUGOjI GdRQGYjI (B/ s - (3GdfLaj, SGde Jhajbs; (3TQja, YHO GdQRGb YHO GdMejOs ((3GdehUd (B:s (3hRGQI GdJYdje GdYGdj h GdHMK GdYdej,s, 1990)
Keywords: (3GdRQGYIs; (3GdEbJUGO GdRQGYjs; (3GdEfJGL GdRQGYjs