Beckett, Samuel. Waiting for Godot: A Tragicomedy in Two Acts. Grove, 1954.
Waiting for Godot. Directed by Michael Lindsay-Hogg, 2001.
Esslin, Martin. "Introduction: The Absurdity of the Absurd." Bloom's Modern Critical Interpretations, edited by Harold Bloom, New York, 2008, pp. 25-32.
Beckett, Ionesco, and the Theater of the Absurd: Crash Course Theater #45
Schumach, Murray. "Why They Wait for Godot." New York Times, 21 Sept. 1958.