Barger, E., From Rock to Rock: the Music of Darkness Exposed!, Huntington House, Lafayette 1990, pagg. 190;

Friends, T. W., Fallen Angel: The Untold Story of Jimmy Page and Led Zeppelin, Gabriel Publications, Titusville 2002, pagg. 632;

Godwin, J., Rock & Roll Religion: a War Against God, The Rock Ministries, Bloomington 1995, pagg. 224;

Hart, L., Satan's Music Exposed, Salem Kirban, Huntingdon Valley 1981, pagg. 187;

Haynes, M. K., The God of Rock: A Christian Perspective of Rock Music, Priority Ministries and Publications, Lindale 1982, pagg. 216;

Jones, R., Stairway to Hell: the Well-Planed Destruction of Teens, Chick Publications, Chino 1988, pagg. 206;

Matt, M. J., Gods of Wasteland: Fifty Years of Rock'n'Roll, The Remnant Press, St. Paul 2000, pagg. 193;