(3GdeLJeY GdYQHj s - (3QeRj GdTGYQs (3OcJhQ (B/ (3eOQS GdbGfhf GdYGe aj cdjI GdMbhb LGeYI Yjf TeSs ((3eUQ (B:s (3OGQ GdfgVI (B,s, 1970)
. 240-220 (3HHdjhLQGajG(B: (3UaMGJ(B.s
Keywords: (3eLJeYGJ YQHjI s; (3Ydhe GLJeGYjI s