(3eSjQI KbGaI GdWad GdYQHi (B: s (3OQGSI JhKjbjI Mhd LghO NHQGA KbGaI GdGWaGd hJhUjGJge (B((3ef aHQGjQ (B1968 - (3Gdi jhfjg (B1988) / s - (3fJjdI QGTOs ((3GdbGgQI (B: s (3GdeLdS GdYQHi ddWahdI hGdJfejI , s, 1988)
Keywords: (3GdQYGjI GdGLJeGYjIs; (3Mbhb GdWads; (3GdWad GdYQHi (B- (3QYGjIs; (3GdWahdI (B- (3eDJeQGJ hfOhGJs; (3GdWahdI (B- (3HHdjhLQGajGJs