(3fXGe GdVQGFH Ydj GdONd GdeUQj (B/s - (3TQja QeSjS JcdGs ((3GdbGgQI (B:s (3OGQ GdacQ GdYQHj ,s, 1979)
(3jTJed Ydj GQLGYGJ HHdjhLQGajI(B.s
(3GdfU HGddZI GdYQHjIs
Keywords: (3GdVQGFHs; (3GdeGdjI GdYGeI hGdJTQjY GdVQjHjs