(3JGQGS HhdHG (B: (3HWd GdbhRGbs - (3ZhZhd(B. (3fjbhdGs ((3ecJHI GdeYGQas (3HjQhJs, 1987)
(3JQLeI dLfI ef GdeJNUUjf HGTQGa GdfGTQs
Keywords: (3bUU s; (3bUU eJQLeIs