(3GdbhejI (B:s (3fMh fXQjI YdejI eYGUQI (B/s - (3ghQGS, OGajRs ((3HjQhJ (B:s (3eDSSI GdCHMGK GdYQHjI ,s, 1980)
Keywords: (3fXQjI YdejIs; (3GdbhejI s