(3GdGbJUGO GdYQHj JMJ GdMUGQ (B:s (3OQGSGJ aj GdCReI GdGbJUGOjI GdYGdejI hJCKjQgG aj GdGbJUGO GdYQHj eY ETGQI NGUI Yf GdOGFfjI hGdeOjhfjI GdYQHjI (B/s - (3QeRj Rcjs ((3HjQhJ (B:s (3eQcR OQGSGJ GdhMOI GdYQHjI(B,s, 1989)
Keywords: (3GdeGdjI GdYGeI hGdJTQjY GdVQjHjs