(3JGQjN GdfXe GdGLJeGYjI hGdbGfhfjI (B/s - (3aQMGJ, eMeO fhQs ((3GdbGgQI (B:s (3OGQ GdKbGaI ddfTQ, s, 1979)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdfXe GdbGfhfjIs -- (3JGQjNs; (3GdfXe GdGLJeGYjIs -- (3JGQjNs