(3bUI NUGe GdCQbGe h eaGNQgG (B: s (3bUI ef bUU GdNjGd GdYdej ddcHGQ h GdUZGQ (B/ s - (3GdLQGLQI, YjSis ((3YeGf (B: s (3CeGfI YeGf, s, 2001)
Keywords: (3GdGQbGe(B.s; (3GdQjGVjGJ(B.s; (3GdbUU(B.s; (3GOH GdGWaGd(B.s