Sanders, Catherine (2005). «Harry Potter and Other Common Questions». Wicca's Charm: Understanding the Spiritual Hunger Behind the Rise of Modern Witchcraft and Pagan Spirituality. Colorado Springs, Colorado: WaterBrook Press. p. 41. ISBN0-87788-198-7.
Sanders, Catherine (2005). «Harry Potter and Other Common Questions». Wicca's Charm: Understanding the Spiritual Hunger Behind the Rise of Modern Witchcraft and Pagan Spirituality. Colorado Springs, Colorado: WaterBrook Press. pp. 41–42. ISBN0-87788-198-7.