(3GdfMh GdhGVM aj bhGYO GddZI GdYQHjI ddeOGQS GdKGfhjI (B/ s - (3GdLGQe, Ydjs; (3Cejf, eUWais ((3HjQhJ (B:s (3OGQGdeYGQa,s, 1979)
Keywords: (3GddZI GdYQHjIs; (3bhGYO GddZIs; (3Yde GdUQas