(3GdJMVQ aj GdeLJeY GdbWQj (B: s (3OQGSI CfKQhHhdhLjI deOjfI GdOhNI (B/ s - (3Zfje, eMeO CMeOs ((3GdbGgQI (B:s (3OGQ GdeYQaI GdLGeYjI,s, 1987)
Keywords: (3Yde GdELJeGYs; (3GdQjas; (3bWQs