(3JHYjO GdYdeGA Yf JbQjH GdGeQGA (B/ s - (3Ydi GdbGQi, Ydi Hf SdWGf eMeO, (B-1606(3es; (3eMeO Ydi GdeQUai (B((3JMbjb(B)s ((3GdbGgQI (B: s (3YGde GdcJH GdMOjK , s, 1990)
Keywords: (3GdKbGaI GdGSdGejIs; (3Gdabg GdGSdGeis