(3WHjYI GdVhA hGdBdGJ GdHUQjIs - (3fjhjfZ(B. (3a(B.s ((3ecJHI dHfGfs (3HjQhJs, 1980)
(3JQLeI CMeO GdNWjHs
Keywords: (3GdVhA s; (3BdBJ HUQjIs