By Hook Or By Crook: How Cults Lure Christians, Harold L. Bussell, 1993 [originally published as Unholy Devotion: Why Cults Lure Christians].
Dr. Bussell’s perspective is that evangelicals are seldom attracted to aberrational Christian groups because of their doctrine; rather, the appeal is the promise of “something more”, a perceived “spirituality”.
Dagg Manual of Theology (and links to this work in various other formats).
Dagg Manual of Theology (MySword for Android)
Dagg Manual of Theology (theWord Bible Format)
Dagg Manual of Theology (esword format)
Dagg Manual of Theology (PDF Format)
