(3efgL Cgd GdSfI hGdLeGYI aj fbO GdQLGd hGdcJH hGdWhGFa (B/s - (3GdeONdj, QHjY Hf gGOj YejQs 1351 (3gLQj(B-s ((3LOI (B- (3GdeedcI GdYQHjI GdSYhOjI (B:s (3ecJHI GdUMGHI ,s (3GdbGgQI (B- (3eUQ (B:s (3ecJHI GdJGHYjf ,s, 1992)
Keywords: (3GdESdGes -- (3OaY eWGYfs -- (3Cgd GdSfI hGdLeGYIs