(3GdJhQGI GdVGFYI (B: s (3eSQMjI ai KdGKI aUhd (B/ s - (3Ydi GMeO HGcKjQs ((3GdbGgQI (B: s (3ecJHI eUQ , s, 1989)
Keywords: (3GdGOH GdYQHis; (3GdeSQM GdYQHis; (3GdeSQMjGJ GdJGQjNjIs; (3GdeSQMjGJ GdYQHjIs