(3ai GdKbGaI GdSjGSjI (B: s (3GQGA Mhd GReI GdacQ hGdeeGQSI ai GdhWf GdYQHi (B/ s - (3MSf Mfais ((3ShQjG (B: s (3OGQ YdGAGdOjf , s, 1998)
Keywords: (3GdhWf GdYQHis; (3GdSjGSIs; (3GdKbGaI GdYQHjIs; (3GdKbGaI GdSjGSjIs; (3GdKbGaI (B- (3GdYGde GdYQHis