(3GdYQGb (B:(3LOjO GdMQcI hJLOjO GdWdGFYs - (3GHQGgje ,HGbQs ((3dHfGfs :(3HjQhJ ,OGQ GdcfhR GdPgHjI s, 1996)
Keywords: 1-(3GdYQGb (B- (3GdMQcI GdhWfjI s