(3GdWQb GdeNJdaI dbjGS cGdSjhe GdYXGe aj LSe GdEfSGf (B:s (3OQGSI hJbjje (B/s - (3GdLGQ Gddg, eMeO EHQGgje Ydjs ((3GdchjJ (B:s (3OGQ GdHMhK GdYdejI, s, 1980)
Keywords: (3GdWHs