(3GdGNJHGQGJ GdGSbGWjI (B/ s - (3Zfje, SjO eMeO, s; (3HQGOI, gOi, s ((3GdbGgQI (B[(3eUQ(B] : s (3OGQ GdfgVI GdYQHjI, s, 1975)
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B442-448.s
Keywords: (3GdGNJHGQGJ GdfaSjIs; (3GdGSbGWs -- (3Yde GdfaS(B.s; (3GdTNUjIs -- (3GdLhGfH GdfaSjI(B.s