(3EHf QTjb GdbjQhGfj TGYQG (B/ s - (3HhQjfj, YHO GdYRjR eMeOs ((3HjQhJ (B:s (3LGeYI GdbOjS jhSa (B- (3cdjI GdBOGH h GdYdhe GdEfSGfjI,s, 1981)
(3QSGdI eGLSJjQ HETQGa GdOcJhQ CSGeg YGfhJjs
Keywords: (3GdTYQGA GdYQHs