(3geRGJ TjWGfjI hSdjeGf QTOi (B/ s - (3fHjd GdSeGfs ([S.N] : (3OGQ YeGQ ddfTQ hGdJhRjY , s, 1989)
Keywords: (3GdGSdGes; (3QaY GdeWGYfs; (3GdbQGfs