(3GdShb GdGhQHjI GdeTJQcI (B: s (3GdJfGbVGJ hGdYdGbI eY GdcjGf GdUgjhfj (B/ s - (3GdOaGYj, YRjR, s ((3HZOGO, GdYQGb (B: s (3OGQ GdTDhf GdKbGajI GdYGeI (B990.s, 1990)
(3jJVef GQLGYGJ HHdjhLQGajI (B: (3UaMI (B177-179.s
Keywords: (3GdShb GdChQhHjI GdeTJQcI(B.s; (3GdYdGbGJ GdGbJUGOjI GdOhdjI(B.s; (3GdLeGYI GdGbJUGOjI GdGhQhHjI(B.s; (3GhQhHGs -- (3GdJcGed GdGbJUGOj(B.s