(3CeQGA GdTYQ GdYQHj aj GdYUQ GdYHGSj (B/s - (3GdebOSj, CfjS s ((3HjQhJ (B- (3dHfGf (B:s (3OGQ GdYde ddedGjjf ,s, 1989)
(3OQGSI JMdjdI dCOH KeGfjI ef CTgQ TYQGA GdYQH hddLkh GdPj fTChG ajg s
Keywords: (3GdTYQGA GdYQHs -- (3JQGLes; (3GdTYQ GdYQHjs -- (3JGQjN hfbOs