(3aj egH GdeYQcI s - (3Hf fHj(B. (3eGdcs ((3OGQ GdacQ GdeYGUQs (3HjQhJs, 1991)
Keywords: (3GddZI GdYQHjI (B- (3ebGdGJ ebGdGJ (B- (3dZI YQHjI s