மறைபொருள் நிலை: திருத்தங்களுக்கு இடையிலான வேறுபாடு

*[http://transcommunication.org/ eLibrary of ancient books] on occultism, spiritism, spiritualism, séances, development of mediumship in the Western and Oriental Traditions. Many technical advice on ITC and EVP, and practical tips concerning the development of different forms of Mediumship provided by medium Maryse Locke.

* [http://www.themystica.org/mystica/default.html the MYSTICA.ORG] An on-line encyclopedia of the occult