(3OQGSGJ ai GdJfejI hGdJcGed GdGbJUGOi GdYQHis ((3HjQhJ (B: s (3eQcR OQGSGJ GdhMOI GdYQHjI , s, 1983)
Keywords: (3GdYGde GdYQHis; (3GdGMhGd GdGLJeGYjIs; (3GdRQGYIs; (3GdJfejI GdGbJUGOjIs; (3GdONd Gdbheis