(3GdTHGH Hjf GdJWQa hGdGfMQGa (B/s - (3EHQGgje, ESeGYjds ([(3GdbGgQI(B] :s (3ecJHI GdOGQ GdYQHjI ddcJGH,s, 1998)
(3HHdjhLQGajI (B: (3U(B. 162-164.s
Keywords: (3GdTHGHs; (3GdGfMQGa GdGLJeGYjs