(3JfejI GdeLJeY cYedjI (B/ s - (3eOMJ eMeO GHh GdfUQs; (3di(B0 (3L(B0 (3cGQis; (3NejS, G (B. (3Ls ([S.N] : (3ejOJh ddJfejI hGdQYGjI GdUMjI , s, 1970)
Keywords: (3JfXje GdeLJeYs; (3NOeI GdaQOs; (3GdNOeI GdGLJeGYjIs; (3NOeI GdLeGYIs; (3NOeI GdeLJeYs