(3GdLPhQ GdSjGSjI hGdacQjI hGdGLJeGYjI ddMQcI GdbhejI GdYQHjI GdGSJbdGdjI aj GdYQGb (B/ s - (3fXej , hejV LeGd YeQ s ((3HjQhJ (B: s (3eQcR OQGSGJ GdhMOI GdYQHjI , s, 1985)
Keywords: (3GdYQGb (B- (3JGQjN s