(3ehShYI JaSjQ GdCMdGe (B/ s - (3ejdQ, s; (3ehSi, gOis ((3GddGPbjI (B:s (3OGQ GdMhGQ ddfTQ h GdJhRjY,s, 1990)
Keywords: (3GdCMdGes; (3Yde GdfaSs