(3GdCacGQ h GdCSdhH (B: s (3OQGSI aj Gdaf GdQhGFj h dZJg (B/ s - (3JTjJTQjf, C (B.(3as; (3TQGQI, MjGIs ((3HZOGO (B:s (3hRGQI GdKbGaI h Gdafhf,s, 1978)
Keywords: (3GdbUU GdQhSjIs; (3GdfbO GdCOHjs