(3GdbGfhf GdEOGQj GdchjJj hbGfhf GdNOeI GdeOfjI GdLOjO (B/s - (3GdMdh, eGLO QGZHs ((3GdchjJ (B:s (3PGJ GdSdGSd ddWHGYI hGdfTQ,s, 1980)
(3jTJed Ydi EQLGYGJ HHdjhLQGajI(B.s
Keywords: (3GdbGfhf GdEOGQjs -- (3GdchjJs; (3GdNOeI GdeOfjIs -- (3bhGfjf hJTQjYGJs -- (3GdchjJs