(3hSGFd h CSGdjH GdGJUGd aj GdeLGdGJ GdGLJeGYjI h GdJQHhjI h GdGOGQjI h GdGYdGejI (B/s - (3RjOGf, YHO GdHGbjs ((3LeghQjI eUQ GdYQHjI (B:s [(3Ohf fGTQ(B] (3,s, 1974)
Keywords: (3CSGdjH GdGJUGd s; (3GdJQHhjI s; (3GdeLGdGJ GdGLJeGYjI s; (3hSGFd GdGJUGd s