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Esslin, Martin. Pinter. A Study of His Plays. London: Eyre Methuen, 1973.
Gale, Stephen H. (ed.). Critical Essays on Harold Pinter. G.K. Hall & Company, 1990.
Gussow, Mel. Conversations with Pinter. London: Hern, 1994.
Mayberry, Bob. Theatre of Discord: Dissonance in Beckett, Albee, & Pinter. Rutherford: Fairleigh Dickinson UP, 1989
Merritt, Susan Hollis. Pinter in Play: Critical Strategies and the Plays of Harold Pinter. Durham: Duke UP, 1990.
Prentice, Penelope. Harold Pinter: Life, Work, & Criticism. York Press, 1990.
I don't agree about Ben's knowing that he was going to betray Gus, I think he is a poor puppet who can only follow orders literally, so if they tell him "shoot the man who comes through the door", he simply does it. In my opinion, that's the essence of the last silence, the finding out and the inevitability of the task. I don't find any clue in the characterization of Wilson that he would have any need of giving that information to his inferior.
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