(3GdbGfhf GdJLGQj (B: s (3OQGSI ebGQfI JJfGhd GdJLGQI hGdJLGQ hGdGYeGd GdJLGQjI GdOaGJQ GdJLGQjI (B- (3GdSLd GdJLGQj (B- (3GdeDSSGJ GdJLGQjI hTQcGJ GdGTNGU hGdGehGd (B/ s - (3YWhj , ahRj s ((3HjQhJ (B: s (3OGQ GdYdhe GdYQHjI , s, 1986)
Keywords: (3GdbGfhf GdJLGQj s