(3GbJUGOjGJ GdfbhO (B/s - (3YHO GdQMef jSQi GMeO s ((3GdGScfOQjI (B:s (3OGQ GdLGeYGJ GdeUQjI (B,s, 1979)
(3jTJed Ydi EjVGMjGJ, LOGhd , eKjdjGJ (B.s
.281-283(3HHdjhLQGajG(B: (3UaMGJ(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdeGdjI GdYGeI hGdJTQjY GdVQjHjs; (3GbJUGOjGJ GdeGds