(3HjY GdeHGfi JMJ GdGfTGA (B((3OQGSI ebGQfI ai GdbGfhf GdeUQi hGdaQfSi hGdchjJi(B) / s - (3eMeO GdeQSi RgQIs ([S.N] : (3SjO YHO Gddg hgHg , s, 1987)
Keywords: (3GdbGfhfs; (3GdbGfhf GdeOfis; (3bhGfjf hJTQjYGJs; (3GdbGfhf GdebGQfs; (3GdHfGAs