(3GdJMdjd GdfaSi (B: s (3hbVGjG GdGfSGf hGdMVGQI (B/ s - (3ajUd YHGSs ((3HjQhJ (B: s (3OGQ GdacQ GddHfGfi , s, 1991)
Keywords: (3GdJMdjd GdfaSis; (3aQhjOs; (3Yde GdfaS (B- (3OQGSIs; (3Yde GdfaS (B- (3fXQjGJs; (3GdTNUjI, Yde GdfaSs