(3OjhGf EeQF GdbjS (B/ s - (3GdcfOj, LfOM Hf MLQs; (3GdaGNhQj, MfGs ((3HjQhJ (B:s (3OGQ GdLjd,s, 1989)
Keywords: (3GdTYQ GdYQHjs; (3GdYUQ GdLGgdjs