(3GdeQCI hJLGQI GdeNOQGJ (B:s (3OQGSI aj CfKQhHhdhLjG GdLQjeI (B/s - (3ZGfe, YHO Gddg YHO GdZfjs ((3GdEScfOQjI, eUQ (B:s (3GdecJH GdLGeYj GdMOjK,s, 1991)
(3HHdjhLQGajI (B: (3U(B. 359-363.s
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdeNOQGJs -- (3UfGYIs; (3GdeQCI hGdLQjeIs