6[美]Jay Ruby, The image Mirrored, Alan Rosenthal edit; New Challenges For Doclumentary, University of Catifornia Press, Berkeley/ Los Angoles/London,1988,P66.
10Jack C Ellis, The Documentary Idea: A Critical History of English,Language Documentary Film and Video, Prentice Hall,Englewood Cliffs, New Jersey, 1989 p218;219,p41.