(3GdcGed aj bGfhf GdJLGQI (B/ s - (3fGUja , GdjGS s ((3HjQhJ (B: s (3efThQGJ YhjOGJ , s, 1985)
(3L (B1 (3jJVef (B: (3GdGYeGd GdJLGQjI hGdJLGQ (B- (3GdeDSSI GdJLGQjI (B- (3GdGSfGO GdJLGQjI (B- (3GdYbhO GdJLGQjI s
Keywords: (3GdbGfhf GdJLGQj s