(3OQGSGJ aj GdeLJeY GdYQHj (B/ s ((3YeGf, GdGQOf (B: s (3GJMGO GdLGeYGJ GdYQHjI, GdGeGfI GdYGeI, (B406 (3g`(B. = 1985.s, 1985)
(3jJVef GQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdHdGO GdYQHjIs -- (3GMhGd GLJeGYjI(B.s; (3GdHdGO GdYQHjIs -- (3GMhGd GbJUGOjI(B.s; (3GdHdGO GdYQHjIs -- (3SjGSI hMcheI(B.s