(3GdeYGQVI ai GdGSdGe (B: s (3Hjf GdfXQjI hGdJWHjb (B/ s - (3LGHQ bejMIs ((3GdbGgQI (B: s (3OGQ GdLdGA , s, 1988)
Keywords: (3GdGSdGes; (3GdTQjYI GdGSdGejIs; (3GdOjGfGJs; (3GdeYGQVI (B( (3SjGSI (B)s; (3GdGSdGe hGdSjGSIs