(3YeGf h JGQjNgG GdHMQis - (3YeGf(B.s (3hRGQI GdGYdGe h GdKbGaIs ((3SdWfI YeGf(B:s (3hRGQI GdGYdGe h GdKbGaI(B:s, 1979)
(3jTJed Ydi GQLGYGJ HHdjhLQGajI(B((3U(B187-190)s
Keywords: (3YeGfs -- (3GdJGQjN GdHMQis