Jelaskan Catatan dari The Unholy Three (film 1925)

Blyn, Robin. 2006. Between Silence and Sound: Ventriloquism and the Advent of the Voice in The Unholy Three in The Films of Tod Browning, in The Films of Tod Browning, ed. Bernd Herzogenrath, 2006  Black Dog Publishing. London. pp. 117–127

Eaker, Alfred. 2016. Tod Browning Retrospective https://alfredeaker.com/2016/01/26/todd-browning-director-retrospective/ Retrieved 26 February, 2021.

Herzogenrath, Bernd. 2006. The Films of Tod Browning. Black Dog Publishing. London.

Sobchack, Vivian. 2006. The Films of Tod Browning: An Overview Long Past in The Films of Tod Browning in The Films of Tod Browning, editor Bernd Herzogenrath, 2006 Black Dog Publishing. London. pp. 21–39.

Rosenthal, Stuart.  1975. Tod Browning: The Hollywood Professionals, Volume 4. The Tantivy Press.